They don't need to add an app store for that. They just need to convince Netflix etc to remove the regional restricted stick out of their butts.
It would help in the iTunes Store as well. The nets etc talk about not wanting to make things like Amazon and iTunes quicker, better or cheaper because it promotes piracy by giving them better access to nice files to spread around. What they don't realize is how much of the folks that would download those files do it because you air a show and don't post the eps until almost a year later. or it airs in one country, six months later in another, but you have to wait a year after that to get the downloads the first country had as it airs. And in the US, only some perhaps 100k folks are tracked for the precious ratings to judge shows so why not just torrent, no one notices in the end. So there's another reason to just torrent.
But if they posted within a week tops of the OTA, to all stores worldwide, at a decent pricing many of those torrent users would stop because they have access from the source. If the nets would count those buys with the ratings, more would stop because buying would be a 'vote' to keep the show on the air. Post with decent quality and pricing and with the same audio/subtitle files and features on a season pass as you put on the disks and folks are less inclined to just wait for that and the nets have the money when they need it most, during the season. Perhaps then we would see a reduction in piracy (it will never completely end) and a rise in decent shows being able to stick around. No more peanuts and plastic dinosaurs and such being mailed to nets for canceling decent shows like Jericho or Terra Nova and replacing them with yet another lame reality crap (what they need to do to make shows actually good is a different thread for another board)