I'm actually going to claim this "for Grandmas" bounty myself, on behalf of Monetas.

We have produced a "Grandma Easy" client, we just haven't released it yet (coming soon.)

Screenshots:  http://ft.vm.to/files/screenshots/

--------------------------------------------------------------

I suggest anyone who is interested on working on an OT-related client, look instead at the "Holy Grail" bounty:
https://bitcointalk.org/index.php?topic=225954.0