to be honest some of us went to Nintendo and destroyed all their vitality sensor research when we found out that things would get complicated when we would be playing a vitality sensor game and our girlfriends hot friends would come over...

Last official word was the tech only worked accurately for 90% of users. Meaning if they'd launched it, 10% of people wouldn't be able to play the game(s) properly. They were looking for ways to boost that percentage into the high 90's before making it available.

Since we haven't heard about it since, we can assume either the tech to do so isn't yet (economically) available or it's just been scrapped altogether.

gamers want to play games, not take blood pressure. that's just silly. That's why no one has heard about it after that e3

They probably realized it wasn't a very comfortable way to play your games, so have either abandoned it or plan to use a similar idea with different tech.

That sucks! I was going to buy four and didn't even know what it did.