Your first post implied to me that native apps are somehow more susceptible to being trolled, and therefore it's safer to code for the mobile web. Is there evidence of this trolling discrepancy? (If there is then I'm totally wrong, but it seems to me this particular case just happens to be targeted at app developers. The next patent troll issue that makes the HN frontpage could easily be targeted at mobile web devs.)

I feel like your more recent question is not directly related to the previous points (so maybe I'm misunderstanding), but I'll answer anyway: no, I don't think hackers should worry too much about patent trolls when building stuff (or else the trolling is working and limiting creation), but I do think hackers should make a stink when patent trolls do their thing--especially when they do it to the little guy.