I am amazed that this really is surprising people. Sony are notorious for this kind of thing, and have been for years. Just ask anyone who has dealt with digital cameras, for example, where Sony has been pulling this shit for a while now, with different memory sticks for each model, or different chargers, proprietary batteries you can ONLY buy from sony, etc etc. This is the reason why I generally steer clear of Sony products (ps3 aside), because it seems that instead of treating me like a valued customer, i get treated like a serf.