From Internetnews.com: Google to Buy Meetroduction
The software is compatible with AOL Instant Messenger, Yahoo Messenger and ICQ, adding the ability to find people outside of one’s personal buddy lists. Before the acquisition, the company planned to eventually support MSN Messenger and Jabber as well.
(emphasis mine)
From Downloadsquad.com: Google acquires Meetro, absolutely totally definitely doing IM now
Who knows how far along that company got with their jabber support, though. This combined with that other cell phone/sms thinger they bought is interesting though; it only makes sense to support jabber with the great presence support it has.