If you use the Google Mail, probably you have notice the new Feature Priority Inbox. By clicking on the "+" or "–" button you can add or remove "Priority" to your emails and next time that you receive a new mail from those account, this email will be on the top and highlighted. Gmail can identify also by automatic the email that’s important to you by scanning keywords that appears frequently.
Gmail now migrates email and contacts from other email providers, including Yahoo!, Hotmail, AOL, and other providers. It’s much easier to make the transition now that you can bring along all your old email and contacts. You can even have your messages forwarded from your old account for 30 days, giving you time to take Gmail for a test drive while you make up your mind.
This new feature is available in all newly-created Gmail accounts, and it is slowly being rolled out to all existing accounts. It’ll take longer than the few hours or days that most Gmail features take to get out to everyone.
New feature in Gmail Labs. Turning On "Inserting images" will allows you to insert images into a message body. You can upload and insert image files in your computer, or insert images by URLs.
Go in Lab area in your Gmail account and find Inserting images features:
One of the areas that google team worked on was the initial loading sequence: everything that happens behind the scenes between the time you press the “Sign in” button on the login page and the moment you land in your inbox. While the improvements they made won’t resolve every “This is taking longer than usual…” message you might see when loading Gmail over a slow connection, was made a real reduction (up to 20%) in overall load time compared to the previews