Micropayments already exist on several european market for 10 years .... nothing really new here.
The only problem is that most micropayment sponsors on these markets all went to credit card billing as it is 10 times more profitable....
Remember also that if you charge your user $2, telco + your micropayment provider will take at least 50% of it. So you have to live and pay your affiliates with $1.... good luck
