New cool features are added in GMail
Gmail has introduced new features under Google Labs. Some cool features which are needed is there. My favorite is Undo Send
New in Labs: Photo previews, offline access, and more
Try out these and other experimental features from the Labs tab under Gmail Settings:
YouTube, Picasa, Flickr, and Yelp previews
Instead of just links, see previews of photos, videos, and reviews right in your email.
Oops, hit "Send" too soon? Give yourself a grace period of a few seconds to cancel sending, then edit your message before sending again.
Take your to-do list everywhere you go. Just go to gmail.com/tasks from your mobile browser.
Make Gmail work even when you’re not connected to the internet.