I think that PlayStation DNA has always been about stability and not making changes midcourse. So any technology we do bring needs to be forwards and backwards compatible for the same platform. It doesn't matter if it's a gyro-sensor or anything else. It needs to be compatible with all of the platform's forthcoming games as well as its catalogue. If the consumers who have already bought PSPs need new tech to play it which isn't compatible with that platform, you're sending them a bad message. You're saying “if you want to play this great new game you've got to go out and buy a new PSP.”
We tend not to do that, generally. We like to think that we're keeping a very stable platform for the lifespan of the product – we did this with the original PlayStation and the PS2. We intend to do that for the PS3 and PSP as well. There are a lot of interesting and exciting new technology out there, sure, but again, if it means that we end up sending a bad message to our consumers, we tend to try and avoid that.