Dropbox Mobile is a imperfect client for Dropbox's great file sharing system. There 2 free GB's of memory is plenty for most stictly file sharing situations, however if you want any more memory to hold anything like your music or movies, you might need to purchase an upgrade. If you dont want to purchase anything, clicking this link (https://www.dropbox.com/referrals/NTY3NzcxNjc5) to get an extra free 256MB of memory added to your Dropbox account, and if you refer your friends, you can get more! Back to the application, the importing and exporting functions of the application are less than perfect but updates and partnerships with other applications will fix this. The interface is simple, convenient, and perfect for browsing a document on the way to a meeting or updating a spreadsheet on the go with a partnered application. That is the biggest thing about this application. The need for partnered applications or even bundled applications created by Dropbox to export to. The biggest thing about this app is to buy it now while it is free and refinements will come with time.