I've already broken two PS2 controllers by 'excessive' playing of Gran Turismo... (and not even when I've spit the dummy either, just through regular play)... the X button takes a fair old hammering, and it will be interesting to see how long the controls on the PSP mobile will last... the controls being pressure-sensistive is essential to the GT series of games, but the controllers are not invincible, as I've proved twice already! Let's just hope the PSP is robust...