An SSB/cloud-based OS. Interesting idea.

A future solution to printing from mobile devices (and anywhere else, I suppose).

"For people who want their writing synced online. SimpleText keeps a folder of text files on your Mac synced to the SimpleText.ws website. Unlike manual syncing, SimpleText merges your changes so you'll never lose data." Not sure I need *another* sync option...

Twitter are using Bittorrent to transfer stuff between servers.

"Tahoe-LAFS is the first cloud storage system which offers
"provider-independent security" -- meaning that not even your
cloud service provider can read or alter your data without your
consent"

A web version of WriteRoom, which syncs with the iPhone version (which I didn't know about either).