I recently got caught-up in a conversation with some other analysts about Google’s bone-head move killing-off XMPP. I contend it was a mistake, and bet that Google will undo it. By October (on Apps, not Gmail). The other folks agreed on the first part, but disagreed that Google would reverse its course. That’s my position; the other two feel the story is over and XMPP and Google have parted ways indefinitely.