These are pretty good for names but I would simply say.

1 BTC is one Barter Token or Bitcoin.
0.00000001 is a Satoshi
100 Satoshi is a Nakamoto or a Nak (pronounced "Knock") 0.00000100 BTC
A bitcoin is 1 million Naks.
It is 4/23/2013 and $1.00 gets you 7143 Naks. Some people are afraid to buy at $140 per Bitcoin because the number scares them.  The Nak could calm people down.

Think of a movie of the Zimbabwe economy or the Weimar Republic RUNNING BACKWARDS.
Play money in 2009 is now a substantial global currency.

Some day the Nak will reach parity with the Dollar as the penny and Satoshi head toward each other in value.

Ron.