As an uninformed public I'd much rather have 200 microbitcoins (or whatever) worth $200 total than 2 bitcoins worth $200 total. I bet it would lead to a lot more adoption purely on the psychological implications alone.
Has merit, but if using bitcoins is profitable, there will be adoption. There might be a speedbump here, but not a wall.
Whatever happened with that idea of bitcoins, bits, and satoshi's as the delimiters? I thought that was brilliant. It went like this;
Bitcoins stay the same.
10,000 bits make a bitcoin.
10,000 satoshi's make a bit.
21,000,000. 0 000 0 000
bitcoins bits satoshi's
So if you buy, .01 bitcoins, you have 100 bits.