Well, if this isn’t the coolest (im sure i’ve said that before!!) app to come out of google… Gmail on your mobile!
Image © Google.com
And I don’t just mean surfing the Gmail website on your mini mobile browser… I mean full blown Java app designed SPECIFICALLY for your thumb 
Seriously, it is fantastic, and will change the way you recieve email (at least it has changed me!!) and it looks super cool on my Nokia 6280, which is also a plus 
If you want it, point your mobile to : http://gmail.com/app. You know you want to!