"I guess we'll never obtain a perfect alternative to the mouse" Because Valve's first effort doesn't completely replace a mouse? That seems a bit defeatist.

"I guess we'll never obtain a perfect alternative to the mouse" Because Valve's first effort doesn't completely replace a mouse? That seems a bit defeatist. "control the cursor with only your thumb rather than your full hand " Control with the thumb vs hand isn't the problem so much as that thumbs are not pointy like mouse lasers. Valve should look at adding a tiny fingertip digitizer. Of course they are still lacking proper text entry and sitting out motion input (i.e. the big innovation in the last 10 years), voice input (the big innovation over the last 5 years) and telepresence isn't going to be a core feature unlike all the competition. And of course they are going to be the most expensive option with the least bang for the buck.