VoiceCentral, a Google Voice application, will be returning to the iPhone. Not as a jailbreak application, and not as an App Store app either. VoiceCentral will be coming back to the iPhone as a web app.
The VoiceCentral developers, Riverturn, call the new version “Black Swan” edition. They are currently excepting registration for the private beta. This new version of VoiceCentral works very much like the native app did, the only downside is that you have to export your contacts to Google Voice to access them from within the app.
With Mobile Safari’s support of HTML5 web apps are becoming an incredibly viable alternative to the App Store.
But, there is still the issue of commerce.