Their earliest patent was filed in 2005. Maybe I have a poor memory, but I feel like anyone 'skilled in the art' of web/mobile technologies would have anticipated applying and combining existing technologies in this way back in 2005.

There was a recent supreme court case - KSR v. Teleflex - that hopefully comes into play... http://blogs.wsj.com/law/2007/05/01/ksr-v-teleflex-the-supre... "Now, all knowledge in the relevant field — technical knowledge, changes in implementing technologies, consumer demand — will be available to show whether the invention was truly innovating or just the product of connecting the dots in the prior art."

If their patent had been filed 10 years ago, I could maybe see an argument. But 4 years ago, not so much.