Here's the next app in my line of succession (kinda feel like the theme section is my own personal area at this point...lol
GTalkInverse.zip - 4shared.com - online file sharing and storage - download
Screenshot... this screen is of the conversation area.. the main area just leaves too much stuff to black out to not show names...lol its black though.
An even blacker Gtalk... this is about as inverted as an app can be without getting into framework edits and making it ROM specific. If you see white in that screen below, it's gone with this zip
GTalk 4.0.2 - Most Updated
Here is the GTalk app for those of you who are running a 4.0.3 version of ICS
GTalk 4.0.3 - Most Updated