I agree with you. However, truly outstanding apps will always do well. I downloaded Angry Birds Lite to my itouch, played the first few levels and promptly bought it. I also did the same with Tower Madness. There was an article on a flash games company that could detect when the app was running on illegal web servers. It would display an advert inside the game saying where it came from which resulted in a spike of traffic and revenue for the original owners. I believe a few developers are now treating the pirates as salesmen to reach a larger buying audience. It's not ideal, just goes with the territory
