But if there are only 21 million bitcoins released is there really enough to sustain a massive e-economy? There are over 500 million facebook users, if even 1/10th of them wanted to send 1 bitcoin there wouldn't be enough.Think of it this way. Let's say one of the big game developers on Facebook started accepting bitcoin for virtual goods. They can now offer their virtual goods at a much lower price, thus increasing the number of people who can participate in the virtual goods market and the number of transactions they will instigate. Currently, I have to really love an app to make a transaction of several dollars through PayPal to buy some virtually stuff. But if I've already got a bunch of bitcoins in my bitcoin wallet I'm more likely to spend the nickel or dime to buy the virtual product.
I suppose if it ever achieved widespread acceptance users would develop a nomenclature around smaller fractions of bitcoins (bitcents, bitpence, etc.)Setting prices of things at 0.0000125 bitcoins is going to get old fast... they should have just used the familiar "dollars and cents" notation and offered 21 trillion bitcoins (or whatever the number should be) instead.