Yeah, you're probably right. Ideally it would make it more expensive for a troll to do their work, but they could just throw up a web page for their "product" and not attempt to sell it.
Exactly, it would cost a company like Lodsys only a few thousand dollars to hire a couple of devs and build an iPhone application that makes use of the patent currently under consideration. That would not be a considerable additional burden when you consider that legal fees for acquiring a patent already stretch into the tens of thousands of dollars.
