Instant Messaging Leaves School for Office, Message in a bottleneck – articles on IM in the enterprise.
Sun’s offering, at least what we saw a few months ago, was pretty pathetic. Interestingly enough, Groove isn’t mentioned. In any case, enterprise adoptance may finally lead to interoperability, which is a good thing. There’s still a big window for Jabber: there’s a lot of potential there for interesting stuff (that’s not available when you don’t own the server and/or can’t hack around w/ the guts).