Gmail's desktop inbox just went through some pretty significant UI changes, and we've just been waiting for Google to update its mobile apps with many of the same elements. The Android app, which Android Police reports is beginning its rollout today, reflects the new multiple-tabbed interface we've had the opportunity to play with for the last week -- it offers the same five tabs that are found on the desktop version, in addition to a new slide-out navigation interface. We're still waiting to get official word from Google about the update, but we'll let you know as soon as we have it. In the meantime, if you feel daring enough to try the new APK, head below to the source link to find a selection of available mirrors.
Update: it looks like the update is starting to appear in the Play Store. Head here to see if it's available for your device. We've had the chance to download it, and can confirm that it offers swipe to refresh in addition to the features mentioned earlier.