Welcome back to Ask TUAW, our weekly troubleshooting Q&A column. This week we've got questions about getting an iPhone, disposing of old Macs, wake from sleep issues, exchanging a recent Mac purchase, podcast hardware and software, and more.

As always, your suggestions and questions are welcome. Questions for next week should be left in the comments. When asking a question please include which machine you're running and which version of Mac OS X (we'll assume you're running Snow Leopard on an Intel Mac if you don't specify). And now, on to the questions.

Tom asks:

I'm considering an iPhone but want to know what my options are. Is the iPhone the best smartphone if I'm a Mac user?

The short answer to that question is "Yes." The iPhone is the best smartphone for you if you use a Mac. It's designed by Apple to work seamlessly with your Mac and iTunes and for the most part, it does. For Mac users the iPhone offers the best user experience possible and keeps you, at least hardware-wise, entirely in the Apple fold.

That said, the iPhone itself may or may not be the best smartphone for your needs. One drawback is that it's only available if you are an AT&T wireless customer. So, unless you are already an AT&T customer, or are willing to switch, you are out of luck.

Plus, using AT&T on a daily basis can sometimes be challenging as it's network occasionally has issues. Also, the coverage in some areas is not quite as good as other networks such as Verizon -- even in larger cities such as Los Angeles, where I live.

Apple made a concerted effort today to highlight the reduced impact its new products have on the environment.

This effort all started with Steve Jobs' open letter in 2007, A Greener Apple, announcing a long-term plan to "protect the environment and make our business more sustainable." The letter was released partly in response to a Greenpeace campaign, encouraging Apple to reduce the amount of toxic chemicals in its products and improve its recycling programs.

Today, the star of the show was Apple's new "unibody," a single, complex chassis for new MacBook and MacBook Pro units fabricated from a single brick of aluminum. In a video posted on its website, Apple noted that as a result of the new fabrication process, fewer parts in the laptop means a reduction in weight, size, and the amount of other material necessary to hold the device together.

An Apple Premium reseller in the UK sent us these photos of an Apple recycling information mailer they received: but the mailer itself was sent in a decidedly non-green way.

From photos the reseller sent, it appears the mailer consisted of two sheets of standard A4-sized paper. Those sheets of paper were placed inside a large, yellow clasp envelope. That envelope was then placed inside a corrugated cardboard box. The box was then mailed to the UK from Switzerland.

While all of these materials are recyclable, it seems like a little bit of a waste to send what could have fit in an everyday DL-sized envelope (that's about the size of a number 10 envelope for us Americans) in ridiculously oversized packaging. Plus, it probably would have saved them a bundle on postage.

Apple has been making a concerted effort to reduce its environmental footprint: not only with the program mentioned in this mailer, but for everything from iPhone packaging to how it makes its displays. Surely this isolated incident isn't representative of the company as a whole, but still. Sheesh.

In the press room at Macworld there was a little foyer with alphabetized buckets where you could pick up press kits from the various vendors. This is an exercise in wastefulness, as many of the press kits are glossy folders filled with photocopies and CD's.

Now, I realize the coordination required to put all this on a single DVD or USB drive would be immense, so I'm not blaming Macworld/IDG here, but surely there's got to be a better way. I've made a gallery of the leftover press releases, CD's and cases I was left with-- and I didn't even take everything! I also had to discard all the covering folders for what I did grab, because I didn't want to pay $60 extra for the additional weight in my luggage (no kidding, it was like an extra 10 lbs. of junk). Sadly, that stuff got trashed in my hotel room, and I'm sure it didn't get recycled. Maybe next year the dream of a "paperless" Macworld can be realized...

Is Apple a "green" company? Today is Blog Action Day, where 15,000 blogs are publishing posts about the environment. I have always thought of Apple having an eye towards the environment, but perhaps I think this is because I remember Apple eschewing extra paper on their boxes way back in the early days. You see, to get optimal 4-color print on a shipping box you have to wrap that box in an additional layer of glossy paper. For a while, Apple was content to ship the monochrome brown box with black ink, thus saving trees and ink. The original Mac boxes were white, but didn't use the glossy stuff.

A year ago you may remember Apple being taken to task regarding their recycling efforts. In fact, Apple has been taken to task on their computer take back program, their packaging and now the scary hazardous chemicals in the iPhone. Shock, horror! Yes, it is obvious Apple is determined to coat the Earth in a fine sheen of clear plastic, aluminum and bromiated compounds. Evil I tells ya, evil.

In their defense, Al Gore is on the board. OK, they have more than just Al. Steve Jobs issued a statement just a few months ago for a greener Apple. Naturally, there are still plenty of skeptics, but the site Green My Apple provides constructive criticism and a fairly healthy outlook for the future. Apple appears to have listened! Of course, they could just hire the Professor and make iPhones from coconuts, right? Given the fact that consumer electronics is about as un-green an industry as you can get, it'll be a very long road indeed before everyone is happy. Then again, as we know too well, there's no way to make everyone happy. The hope is that Apple will continue to innovate with "green" in mind. Not the back of the mind, but right up there in front where it'll do the most good.

Environmental website Grist writes about a new site that sells iPod cases made from recycled 45 rpm records. For $45, you can choose your favorite record from a page of used records, and have your case custom made from your selection. Yes, it's a little on the pricey side, but it's a nice way to green your music. Grist describes it as using the "old media" to protect the "new media". Cute.