Oh my god... I hadn't made my mind up about the allegations, but I'm more shocked than I thought I would be to find out they were true...
I mean he was already guilty for the actual crash, than lousy driver and got fired, feels bitter and then snitched on his ex-bosses.
I'm not excusing Piquet or anything, but think of it from his point of view. He gets a chance to do what he's dreamed of, but being in Renault turns out to be really difficult. He's a young guy under a lot of pressure, with questions over the continuation of his drive and his future in F1. I'm sure Briatore knows how to play a guy in that situation. So Pique does it, selfishly hoping that it'll help him in the long run. Then he gets fired. Yeah, I'm sure there was some bitterness in there... But then again, in his situation, what would you do? Stay quiet and run the risk of them doing it again? Or get it all out in the open, as it should be? He's not stupid - I'm sure he realised it would reflect badly on him, too.