Apart from being old news, you don't need to wait for an invitation and can use it with launchpad credentials.

I remember evaluating this with dropbox when I was after a backup solution. Ubuntu one was the same price for 10GB as dropbox was for 50. Since I had well over 10 in photos, I didn't go any further in research. Seems ubuntuone has the same price for the 50 GB plan now, but now I'm a very happy dropbox user.

To bad. I might still evaluate them again next year when my dropbox expires, but with all my stuff already in there, it might be hard.

One thing I haven't seen mentioned much is that Ubuntu One is integrating CouchDB.

https://wiki.ubuntu.com/DesktopTeam/Specs/Karmic/Integrating...

Also perhaps it seems like every install of Ubuntu will eventually come with CouchDB?

Every install of Ubuntu 9.10 (going final in two weeks) will come with CouchDB, managed with Desktop Couch:

http://www.kryogenix.org/days/2009/07/09/desktop-couch-initi...

Internal Server Error when checking out the app....not what I expected...bad first impression.

What apps are integrated? Do they use an open API so alternate providers can be used?

You get a folder ~/Ubuntu One/ ; save any / all config files in there, keypassX, tomboy, shared files and sync it across machines. nifty.