I am skeptical about Palm's IP finding its way to Amazon. Amazon seems to have invested heavily in Android not only with its own store but a whole line of tablets and phones coming out very, very soon. The talent might be good. But the patents aren't critical and there is no way Amazon wants to go down the same path that just failed for HP.
Really, Google would be the best suitor of Palm if anyone was going to buy it. Google needs those patents bad. Google can use webOS code and engineers on ChromeOS. The UI designers can go to the Android team. And Google just got a hardware division that can absorb any remaining hardware guys.
If Google can get all that for $2 billion it should write the check tomorrow. Bargain.