Motorola have released an update for the Milestone XT720 which only recently went on sale and this is a BIG update. At present the CPU runs at 550MHz but after you apply the update you now run at 720MHz which will be a pretty sweet speed boost for a lot of applications and running the OS.
It also enables DLNA which will allow you to share content with compatible DLNA devices.
Expect to see an OTA update shortly to get the speed boost on your XT720
Link: EuroDroid