I wouldn't use it but considering how many people do use iTunes to buy things (both iPhone/Touch apps and music) this makes a ton of sense. I doubt it'll take

I wouldn't use it but considering how many people do use iTunes to buy things (both iPhone/Touch apps and music) this makes a ton of sense. I doubt it'll take much extra effort to add the infrastructure, if any. And it creates additional revenue stream. Interesting to see where this goes if true.