Looking at the reviews from download.com (http://www.download.com/Google-Talk-beta/9499-2150_4-10429901.html), I've noticed that the most requested features for the desktop client are:
* smilies
* chat/talk with more than one person
* video calls

I would like number 2 the most. I would then like smilies as my second choice, but only the ones like in Gmail. I don't really mind video calls

At this moment, I want the same features on every google talk. I can't put smilies via the executable (they are light-blue symbols) but from the flash version there are images; I can't call from GMail, and I can't share videos from YouTube or similar from the executable.
Google is having some serious problems of sync... Multiple accounts for one person, and different features in the same application...

Invisible mode. I just can´t believe that nobody demand it.

Am I mistaken or did Google Talk have an invisble mode when it was first released and then later taken away. I swear it did at one point.

I wasn't aware of that... :/

Jared, a while ago I was completely convinced it was a feature until Philipp told me it didn't. I guess we both imagined it! (That's unless it *was* once there, of course...)

Really, I told you that Tony? Perhaps I forgot already too :)