Much better than you typically get on the free Internet and nice for someone to do it, particularly:

"So where's the "multitouch patent" everyone keeps going on about? Well, we certainly couldn't find the sort of broad patent that would qualify..."

and also the counterpoint

"What both sides could do is tweak their pending patent applications to more accurately describe their competitors' products and then try to sue based on those -- it's actually considered good practice for tech companies to always have patents pending, so they can try and cut their competitors off..."

There's obviously quite a bit left unaddressed, but good job on both actually doing some research and some well grounded analysis. a surprising (to me) contribution from engadget