If you remember the early days of Apple's App Store, you might remember Bloom, Brian Eno's "generative music" app. It showed the potential of the smartphone as an artistic tool at a time when mobile apps were still novelties. Well, it's coming back with a vengeance on its tenth anniversary... and it's not just for iOS users this time. Eno and Peter Chilvers are releasing Bloom: 10 Worlds, a "significant" expansion and refinement that will be available for Android in addition to the iPad and iPhone. The core formula, where you touch the screen to introduce new sounds and influence the visuals, remains intact -- there's just a lot more to do.