I've played 1000+ hours of Minecraft on my Thinkpad. That would be torture with a touchpad but it's a joy with the nub (which is basically a very small joystick). Why they went with touchpads over traditional dual-joystick input with community managed zero configuration mouse-keyboard emulation I really don't understand.
And I've played a fair amount of Minecraft on my MacBook. I find the trackpad to be quite nice. I've gotten to where I can play most FPS games and feel like I'm very close to where I would be if I were using a mouse.