New Iphone No podcast

The fantastic 3G Iphone is now officially released. Well done mr Jobs. It's great that I can watch youtube clips without having to be in a wi-fi area, but why haven't they enabled podcast download via 3G? If the download size is a problem, then let me set a maximum size that which podcasts to download. Or even better - create an Iphone version of the podcast (same way as they have done with youtube).