Very impressed with the functionality and ease of use of Dropbox, a revolutionary step forward in how data can be shared across multiple devices. In 4 minutes, I installed the app on my Ubuntu (Maverick Meerkat) netbook and Droid X (Froyo) phone and was passing files back and forth. I feel so stupid emailing myself just to get files from one place to another - this should resolve that problem for good. The web UI is perfect and feels a lot like a Google app. Much respect.