Version 40.0.2183 dev (64 bit). Chrome's been pretty touch friendly for a couple of months.
Oh, interesting, I ditched chrome because of how gimped Google had made it on PC+ devices like my Surface Pro. Gonna give the dev version a try in my Tech Preview VHD.
BTW, here's my guide to testing out the Technical Preview via VHD boot. Was done on a Surface Pro 2 and doesn't require any other hardware accessory.