Gmail New Version- new and improved look and feel

Today as the clock tick past 12 midnight, my Gmail automatically got updated to newer version which has few AJAX features incorporated.

Only changes I could see in this version is the Contacts page. Adding new contact information or editing existent contact information has become lot more easier. Above snapshot shows exactly that.

We can also change our contacts' pictures according to our liking which was missing in earlier version. Have a look at it below.
Above all, another option to switch back to previous version is also provided.


I don't find any other special feature in it. It's still a beta version.
Did you notice similar Gmail up gradation?
If yes, did you find any other useful feature besides what I have mentioned here?
Do share that with us.