As Last 100 points out the recent announcement by Apple that the next version of the iPhone software, 3.0, will enable In App purchasing will be a huge boon for micropayments.
This is a huge step in the evolution of the iPhone platform towards a fully-fledged ecosystem. I also anticipate that it will bring about a boost in virtual goods.
Gizmodo thinks this is bad news, but meh, what do they know!