CloudOn managed to attract a fair bit of attention earlier this year with its cloud-based app that indirectly brought Microsoft Office to the iPad, and it's now back with version 2.0 of said app. That doesn't change a whole lot on the surface (though there are some UI tweaks), but it does add support for Box in addition to Dropbox for storage, as well as support for PDFs, PSDs and other formats handled by Adobe Reader. As before, the app is free, and CloudOn assures folks that it has officially licensed the technology from Microsoft and Adobe.