Xdrive is kinda neat. I signed up for it.
Havent really used it at all though. Problem is that yes, it is 5GB, but its limited in how much bandwidth you can do a month. Techinally, if I remember right, it will take you 4 months to fill up that 5GB without paying for it. The software is kinda annoying, it starts up and mounts it at boot, which can slow down things, but its rather easy to shut down, but even when I removed it from msconfig, it would reconfigure itself (bastard! 😛 ) Haven't reallly used it since I reformatted though.