@wilczarz, Lodsys patent is only registered in the US as far as I know, so it affects to anyone worldwide selling in the US App Store.
There is a say, "it's to good to be true", well, I think it also applies to "it's so absurd to be true".
Lodsys strategy is to threat thousands, that way someone will fall and pay them, as it's happening.
As I say, I will be worry when they start getting people into court, if they do. And if they do, it's only profitable for them to sue big ones, no small developers, if you make numbers, they will pay more on administrative fees that they could probably take from small developers.
But I don't blame anyone paying off them, treating small developers, like @cjkeeme, they are threatening families. I'm also a solo developer with family and kids, so my blood boils when I see people like these trying to get advantage of any one.
I am not recommending not to pay them, I'm just sharing my thoughts, and my feeling is their intention is not to take into court anyone, because they cannot win, and they cannot afford to pay thousands of administration fees. I personally would ignore any communication of them, as responding to them is also a way to acknowledge the issue.