This is part of a regular series of Google Apps updates that we post every couple of weeks. Look for the label “Google Apps highlights" and subscribe to the series. - Ed.
In the last couple of weeks, we’ve helped you personalize Gmail in new ways, made our applications speedier to use, brought text recognition and editing powers to Android phones, and given you a glimpse into the inner workings of a Google data center.
Customize Gmail with a favorite photo
For a long while, Gmail has had themes so your inbox can reflect a bit of your personality. Now, you can set Gmail’s background to a photo from your computer or Picasa Web Albums. So if Gmail’s standard theme choices don’t quite float your boat, now we’re sure you can create a theme you’ll love.
Faster multitasking in Gmail with the Background Send Lab
Features like nearly-instant search and integrated instant messaging help you save time in your inbox, but we’re always looking for new ways to speed up your experience in Gmail. On Monday we released a new feature in Labs called Background Send that can shave off a few seconds each time you hit “Send.” With this feature enabled, you can start working with other messages while your outgoing message is processed in the background without slowing you down. Give it a try from the Labs tab of Gmail Settings.
Official Google Blog: Google Apps highlights – 4/29/2011