Read on for more technical details on the processor in the new iPod touch.

Rumors have been crisscrossing the Internet about actions by Apple that point tellingly to the advent of an Apple tablet, or some kind of outsize iPod touch. VentureBeat is speculating that Apple may use chips they have developed themselves in the imminent $800 tablet computer.

Following some of the back story to the rumor helps it make a little more sense: in 2008, Apple acquired P.A. Semi for $278 million and for seemingly no reason, other than extremely valuable and talented staff (P.A. Semi's founder was a lead designer of the StrongARM processor). Nonetheless, Apple quickly put the team to work developing processors for iPods and iPhones. What no one knew at the time, VentureBeat says, is that Apple actually broke the team in half, with the other half working towards a chip for their upcoming tablet.

The tablet is speculated to have only a touch screen with no physical keyboard, and Apple is said to be aiming the tablet at high-end users to avoid the endless need to undercut competitors like Asus and Dell on the lower end. Likewise, more in-house chips could mean lower manufacturing costs for Apple.

The impending in-house Apple chips also may imply doom for Apple's chip partner of a few years, NVIDIA, with whom Apple was reported to have a tiff a few weeks ago. Because of disagreements over the way NVIDIA handled issues with faulty chips in MacBook Pros, there was speculation that Apple may drop NVIDIA from future models and return to AMD. Now Apple has added itself to the list of contenders that will vie for processor production.

Both the China Times and MacRumors have said that Apple plans to release the tablet for the holiday season, and that it has placed orders with a few companies for components of the tablet. If this web of gossip and hearsay that we're hearing through the grapevine is to be believed, there are more than a few breakthroughs to be had on Apple's end, and the longing for a tablet by some may finally (finally) be put to rest.

As Apple continues a march toward all Intel-based computers, those hanging on to perfectly good G5 and G4 computers are left to watch features slowly bleed off.

In the recently released iLife '09 package, iPhoto has left some owners of older Macs wondering where their slide show transitions have gone.

Apple has now released a support document detailing what is missing:

The number of slideshow themes available in iPhoto '09 depends on your Mac's processor and, in some cases, available vRAM:

• Intel-based Mac computers, PowerPC G5 with more than 64MB of vRAM: All iPhoto '09 slideshow themes are available.
• PowerPC G5 with less than 64MB of vRAM: Only Classic, Ken Burns, Scrapbook, Sliding Panels are available.
• PowerPC G4: Classic and Ken Burns are available.

Apple has also changed the minimum specs on Garageband '09, noting that one of the apps most desired features is Intel only: GarageBand Learn to Play requires an Intel-based Mac with a dual-core processor or better.

It is also rumored that the next version of OS X, Snow Leopard will completely drop support for PowerPC processors. Last year, iMovie dropped PowerPC support, so it looks like the handwriting is on the wall. Apple's push to get consumers and businesses to change to the newer Intel platform will get less and less subtle as time goes on.

When Apple announced Snow Leopard, they also detailed a new developer service that can be used to full take advantage of the dual cores in newer Intel Macs. The Apple website tells us the following about GrandCentral:

Grand Central takes full advantage [of the processor cores] by making all of Mac OS X multicore aware and optimizing it for allocating tasks across multiple cores and processors. Grand Central also makes it much easier for developers to create programs that squeeze every last drop of power from multicore systems.

MacNN is reporting that Apple applied for a trademark on the name "Grand Central" under USPTO serial number 77626943. The trademark was filed under "009" classification, which is "computer software; computer operating system software."

We can only wonder if this trademark filing will cause an uproar from Google, who acquired the Grand Central telephony service.

Continue reading to see a screenshot of the trademark filing.

[via MacNN]

TouchArcade interviewed Handheld Games Corp's Thomas Fessler, who noted an interesting bit of the company's research: Second-generation iPod touch devices are significantly faster than their predecessors when it comes to 3D rendering.

In fact, it's faster than both iPhone models as well. In its tests, the iPhone 3G ranked second, the original iPhone third, and the first-generation iPod touch lagged behind in fourth. Fessler is paraphrased in the interview, even suggesting he would not recommend anyone interested in gaming to buy a used first-generation iPod touch.

The primary difference is a faster processor: The second-generation iPod touch has a 532 MHz processor. The iPhone, iPhone 3G, and first-generation iPod touch all have 412 MHz processors.

Fessler also speculates in the interview that the GPU has also been improved, but has no evidence to support that claim. These performance differences may also explain why certain apps only run on second-generation iPod touch devices.

Apple Senior Manager Wei-han Lien let slip that teams acquired with the purchase of PA Semi are working on an ARM-based processor for the iPhone, and possibly other devices, according to The New York Times.

While not a huge surprise, as Steve himself said that's what the former PA Semi staff was working on, the question was still "what kind of processor?"

ARM variants can be customized to meet the needs of very specific devices, including supporting the multi-touch screen, or QuickTime playback. Electronista suggests that this supports earlier hints that Apple licensed the architecture from ARM under a secretive arrangement in late June.

Lien updated a section of his LinkedIn profile to describe what he was working on. (The NYT has a screenshot.) Oops. The profile, as you might expect, has been changed.

Speaking of Intel, The Register is reporting that the chipmaker is preparing three, next-generation processors based on its "Nehalem" architecture, with the fastest topping out at 3.2 GHz. Each processor has four cores with eight processing threads.

The chip architecture, codenamed "Bloomfield," is targeted mostly at gamers. This is purely speculation, of course, but Apple's mid-range high-end desktops could be good candidates for the chips as well.

Intel anticipates the processors will be available in the fourth quarter of 2008.

[Via AMD vs. Intel.]

The folks at Engadget have posted an exhaustively thorough article on an upgrade they performed on a 400mhz Powermac G4. Specifically, they replaced the stock processor with a PowerLogix PowerForce47 G4/2.0GHz, with 512K 1:1 L2 Cache per processor. In the process, they came up with more comprehensive set of instructions than the rather anemic list that shipped with the PowerLogix processor. After a short trip into the wonderful world of firmware, they've got their Sawtooth purring along happily with its new 2.0GHz heart intact. Check it out.