I hadn't even really looked at this thing yet, just lumped it in with the bloatware. but I saw it mentioned in this thread http://www.droidforums.net/forum/droid-3/159766-anyone-unsatisfied-d3-9.html so I decided to take a look at it. ...how has no one really mentioned this app before? This thing may be one of the single greatest apps in creation, and as of right now, the D3 is the only supported device. I have to wonder if it will come to non-motorola phones, cause its a motorola app. Seriously, Zumo Cast replaces any cloud drive from amazon/google/apple, and not only with your music, but videos too. I haven't played with documents yet, but it could also very well replace Dropbox. All by using your computer, and not a cloud drive. If you haven't checked it out yet, do so immediately, you won't regret it.