The iPhone is likely to get a premium App Store if rumors from Wired are true (and previously from Pocketgamer). They say game developers, enterprise developers and other premium vendors will soon have a place to sell their wares free from all of the free and $.99 drivel that pollutes the regular app store.
They put the $20 price point as the barrier for entry into the new "velvet rope area" premium App Store. No game developer would, of course, corroborate their story.
This, of course is a rehash of January’s Pocketgamer.biz’s story of the same subject matter