This is dissapointing to me. There is no "lock" button on the touchpad. I was hoping there was a way to perform a button lock via some obscure key combination, but HP confirmed that it doesn't exist. ..why? It's on the ipad, it's included on the Pre, and it's a pain in the *** when I'm carrying my touchpad in a bag, listening to music on headphones, and the volume is changed everytime I take a step.