If anyone craves a return to the flipping flip-clock, Kendon over at the MoDaco forum's has brought it back as an update.zip - you will need to have a rooted phone with a custom ROM/recovery image, but I can vouch for me that it has worked perfectly without a wipe - and no noticeable slowing down.
the flipclock - Android @ MoDaCo
the flipclock - Android @ MoDaCo