Time Machine automatically saves up-to-date copies of everything on your Mac photos, music, videos, documents, applications, and settings. If you ever have the need, you can easily go back in time to recover anything.
An iPhone version of Time Machine would be a much desired application. It's likely the first backup would take a while and use a lot of battery and data; however, subsequent backups would be incremental and could even be possible over 3G.
Take a look at the mockups below...
Read More [via iSpazio]