There is a lot of talk going on about UbuntuOne. All I have to say is that the Ubuntu trademark belongs to Canonical and they can do with it what they want to. Also they are a business and surely they have the right to make money, and if that is by using their own trademark, why not.
However today I want to ask why I should use UbuntuOne instead of DropBox. I have not used UbuntuOne yet, still waiting on my invite, so this is based on what I have read. UbuntuOne only support Linux and to be more specific Ubuntu. Also I could not gather how seamless it is integrated into Nautiuls. I have been using Dropbox now for a while and has just worked perfectly. I can share files with Windows and/or Mac users. When I run out of my free space on Dropbox I can upgrade and it seems to be cheaper than what UbuntuOne offers.
Dropbox is not perfect. I would like to see better KDE support .. yes one can get it working but it is not nicely integrated. Also I would like to see the possibility to sync more than one folder.