This feature will allow you to just pick up your browsing sessions on any other computer or device you log in to. One nifty aspect of this is that Chrome will also sync your browsing history, so even your back and forward buttons will work.
Adding tab syncing is just the latest syncing feature Google is adding to Chrome. The browser can already sync your bookmarks, apps, history, themes, extensions and other settings between machines as well (assuming you signed in to Chrome with your Google account, of course).
It’s worth noting that while Chrome 19 is out now, Google plans to roll out the tab syncing feature “gradually over the coming weeks.”
As part of this release, Google also announced that it paid out around $14,500 as part of its security bug bounty program this time around.