An anonymous reader writes "When Barnes & Noble first released its Nook tablets, one of the big problems with the devices was that their custom version of Android only had access to the Barnes & Noble app store. They took the 'walled garden' approach, preventing users from accessing Google Play, which had a much larger selection of software and many more options when it came to free apps. Now, the company is reversing that decision. A software update is being rolled out to give the devices access to Google Play. 'The bottom line: if something's available for Android, it's now available for Nook, assuming it's compatible from a technical standpoint. Among other things, that means you'll be able to install Amazon's Kindle app on a Nook and read books you've purchased from Amazon. For the first time, the notion of someone with a heavy investment in Kindle books buying a Nook doesn't sound completely impractical.' The company is gambling that the devices' increased utility will make up for the loss in app revenue. Either way, it's good news for Nook tablet owners."