DoubleTwist really doesn't like to rest on its laurels does it? Having added wireless syncing at the end of last their going one better now by adding a slew of new features to their popular music app (anyone at Google IO can check them out).
While NFC hasn't been doing much on anyones Nexus S line of phones DoubleTwist have made it possible to use the technology to transfer music from one phone to another with just a simple tap (video below). Handy if you got that song your friends just HAVE to hear.
DLNA and Airplay support will allow you flexibility in where you can stream your music to whether it be your AppleTV or Xbox 360. Their is even Beta support for Sonos integration meaning you have plenty of options with DoubleTwist.
Any DoubleTwist users feel free to us what you think of the changes and if they are as good as they sound.