Who use Tahoe-lafs for wallet backup?

[ArsenShnurkov]

http://tahoe-lafs.org/trac/tahoe-lafs

BTW: they accept donations in bitcoins

My questions:
1) what is required to backup the wallet with Tahoe-LAFS ?
2) what is required to restore the wallet with Tahoe-LAFS ?

Is it possible to implement password-only protected backup on base of this system ?
I wish to be able to enter just password and obtain the wallet on fresh machine.

Is it possible/desirable to integrate it into official client ?

[BioMike]

There have been attempts in the past to do something with Tahoe-LAFS, but never got from the ground (to difficult for people to implement and the system seems to hang when one share goes off-line). This was half year ago, maybe things have improved by now.