Craig Hockenberry: “I’m one of the developers that is affected by the Lodsys patent infringement claim. I’m writing not to beg for your support, but rather to give you a better idea of how this legal action affects the average iOS developer.”
Go read the entire article. Craig gets to the point. Paying this troll won’t break the bank, but it opens the door to others.
Something else to keep in mind. Lodsys reserves the right to increase their licensing fee at any time. So, what if 0.5+% goes up to 5% of your revenue, or 10% of your revenue? That would definitely hurt the ecosystem.