A UK developer who goes by “Tones” has created a Flock-specific extension that puts Meebo, and therefore Yahoo, AIM, Gtalk and MSN IM, directly into a sidebar in the Flock browser (the extension also works for Firefox). Since Flock and Meebo are two startups I use, this looked interesting.
I’ve downloaded the extension and tried it out. It works as promised, although it requires constant re-sizing of the IM windows to make it work right. Until the kinks are worked out (possibly via Meebo’s support of the project, which I encourage), I don’t recommend using it.
But I do support the idea behind this entirely. IM should (optionally) be pulled right into the browser, where most of the action on a computer today occurs anyway. There should be no need to use a separate set of clients on the desktop for IM, or even go to Meebo’s website. Just as Flock has built a photo uploader directly into the browser (for flickr and photobucket), they should integrate IM functionality directly into it as well.