Google has just announced some behind the scenes code changes to Gmail and other Google applications aimed at enabling great new information services in the near future. The new version of Gmail is rolling out to all users within the next few weeks, and brings a significant re-architecture to both their back end servers as well as the client side JavaScript.

The new JavaScript will make email pre-load in the background for faster access, unify the Gmail and Pages HTML editor boxes, provide richer keyboard shortcut support, and introduce a better contacts manager. While these might seem like minor features, Google promises that the upgrades will make it easier to roll out future (and as of yet unannounced) functionality, so keep your eyes peeled for a bigger, better Gmail 2.0 just around the corner.