Leopard killed these freeware apps?

Leopard actually HAS killed some of these programs for me too: Adium, iTerm, and Firefox in particular have been replaced on my machine. Actually I still have them installed but with a little help from Leopard and plugins like Chax and PithHelmet I now find the Apple applications more attractive, mainly for reasons of aesthetics and stability.

On the other hand I could not live without LaunchBar--even for just launching apps, Spotlight still falls short.

Now if it had been Microsoft that had done that someone would have cried foul and there would be an anti-trust case

Let's not forget that CenterStage is awful software

Puhleeze... The premise is misleading. You present it like Leopard prevents these apps from working - like they are incompatible. But that isn`t really what it says. And I would debate that MacOS 10.5x has really obsoleted most of the apps listed. Stacks? Eyecandy. Spaces? Awful interface. It sounds like dictionary already hosed Jisho. But GooDict (free) did that as well. Nothing has replaced Journler. If you don't use Mail, then its notes feature doesn't do jack for you.

I would disagree with the addition of Journler to the list of apps and Firefox still has loads of plug-ins that Safari does not have although I mainly use Firefox to test websites... BTW FF 3.0 Beta 1 is out... I tend to agree with Mike in that "the best app for the job depends on both the job and the person doing it." All these apps except for maybe VirtueDesktops still have their particular usefulness.

I don't believe iChat has killed Adium yet. It's very subjective of him to say so just because he doesn't need or want any of the other features it has that iChat doesn't that doesn't mean everyone doesn't. Adium is still a lot more customizable and works with a lot more message services than iChat does. That said iChat does have a couple of things over Adium but Adium isn't sitting still and it's only a matter of time. Adium doesn't just replicate iChat it goes above and beyond the call of duty though with stuff like OTR messaging.

Also these are supposed to be freeware apps so revenue is irrelevant here.

The best advice is don't create an app that addresses what is perceived to be a deficiency in the os and expect to get revenue from it forever.

I'm surprised no-one's mentioned VirtueDesktops yet.

Jisho? You want to compare Jisho to the dictionary that Apple put in Dictionary.app? Don't make me laugh. I am a professional Japanese to English translator. Jisho used Jim Breen's (laudable, but falls short in some areas) EDict files as the basis of the dictionary program, but many of the entries are more red herring than useful for professional work. Further, Dictionary.app integrates throughout your system, in context menus and the dictionary panel. It also features one-click jump (or less) from an Japanese-English lookup to searching on multi-language wikipedia, an English thesaurus to help you get a better word, as well as a Japanese dictionary with examples, definitions, and contrasting uses for people that can read the language. Oh, and did I mention that the JE dictionary, and the JJ dictionary are both commercial products, endorsed by major publishers with professional editing done to all of the included entries?

But wait, there's more! Dictionary.app now allows you to develop your own plugins, so I can get all of those features, plus add a plugin for the EDict file Jisho is based on, as well as plugins for even (more expensive) more professional references than the Shogakukan dictionaries Apple included.

Apple didn't kill Jisho. It answered my prayers by adding pro-level dictionary support to the system wide facilities making Dictionary.app have the potential to become the single best reference tool on any platform. Well... it still has a way to go to catch Jamming (http://dicwizard.jp/jamming/top.php) simply because Jamming already has support for GG5 (if you can afford the data files), but that only takes time for a developer to release an epwing plugin for Dictionary.app…

Edward--it's not the same at all, but 'OpenTerminalHere' might be useful.
http://www.entropy.ch/software/applescript/welcome.html
Still works in 10.5. Also, you can drag a file into Terminal and it'll spit out the path.