Apple has released an all-new version of their long-untouched Remote app for iOS devices, which has been well overdue an update for some time now. It has a number of significant new features, including Retina Display support, an all-new iPad UI, gesture-based remote control support for the new Apple TV, and (perhaps most significantly for some people) the ability to use use Home Streaming to stream content from an iTunes library on your local network to your iOS device. This last addition will be really useful for people with music libraries too large to fit on their device.
We'll have more coverage of the app soon, but in the meantime