Last week saw the release of Gtalkr, a web based Flash interface to Google Talk. Its most notable features is that it allows you to use Google Talk even if you don't have the client installed. Other features include conversation searching, a Yahoo Map based geographic locator search and user profile images. All within a nice UI. Visit Brian Benzinger at Solution Watch for a very detailed summary with screenshots. What's of note ProgrammableWeb-wise is that it has an API. It has now been added to the API database.