I missed this post on Google’s blog. In short, if you use the web client to get to your GMail, “you can sign into their AIM accounts via Gmail chat and talk with AIM buddies just as they do with their Google Talk friends.”
AIM with GMail
December 7, 2007
Google mail supports IMAP
October 23, 2007
Download Squad reported that GMail at long last supports IMAP. I just checked one of my Google-hosted domains, and lo! it is there.
Interestingly, they specifically address the iPhone in their configuration instructions. As a note, you must set up Gmail as IMAP, and not per the stock Gmail settings on the iPhone. “(Note: don’t tap Gmail; if you do, you’ll set up POP rather than IMAP. We are aware of this issue and are currently working to make setting up Gmail more intuitive for the iPhone.)”
Mobile Google Docs
October 17, 2007
http://docs.google.com/m is now live. While you can not edit your documents, you can finally view them easily.