RIM isn't just taking that new suit of Visto's lying down, and have countersued, asking a federal judge to declare three of the patents in question invalid. We all know how well this worked out last time, and Visto has recently won a case with a few of these patents against Seven Networks, but RIM did manage to get most of NTP's patents struck down before that fateful settlement of theirs. Visto has 20 days to respond to RIM's claims, but we have a feeling they're not going anywhere. Let the games begin.

Engadget at E3