Gmail continues to "tune itself" and does a good job figuring out which emails are important and putting them in the priority inbox. Spam it seems to struggle with a little but and I haven't figured out how to whitelist some sites, like say linkedin, facebook, or google.
I didn't get any time to play around with google gadgets yet which I really want to do, but we did enable something called "Cloudworks" from Appirio that is very cool. By default it gives us salesforce integration and some gadgets for chatter, which we use all the time, and pulls in contact data. I think it does opportunities and leads too but since I don't email with customers on a regular basis, I haven't seen that yet.
Jolicloud released a few updates that got added for me automatically and I figured out how to lock my screen. Turns out it's Ctrl-Alt-L.... They also added two cool features that I just started with. The first is google docs integration so all my google documents show up as a folder on my desktop. They did the same thing with dropbox so I had to break down and create an account.
I'm still waiting on the ipad version and the dual display version.