I was a fan of bit, but after all the discussion and reasons not to use bit, ubit is really growing on me.
Advantages of ubit:
-Actually makes sense as a unit of measurement
-Not taken by anything else
-Rolls off the tongue and easy to say
Remember, this will just be the official term. PEOPLE WILL INVENT SLANG NATURALLY AND CALL IT WHAT THEY WISH.
Hell, it may end up being known as the bit. But at least when there is the possibility of confusion (ie buying a 64 bit OS for 32 bits) people can use the official unit (buying a 64 bit OS for 32 ubits).
When you're down at the grocery store buying milk the cashier can use the slang with no confusion (that'll be 2.2 bits).