Just pay attention to what you are reading. The problem of micro-payments has been voiced many times on YC news, PG himself mentioned it in one of his writings.

Just pay attention to what you are reading. The problem of micro-payments has been voiced many times on YC news, PG himself mentioned it in one of his writings. Yet it took forever for TipJoy to materialize. Why? Because of all the details. When I first saw this obvious micro-payments problem I thought about it for about 30 seconds but did not come up with anything significantly different than PayPal. I moved on, but someone decided to spend more than 30 seconds on it.