GFWL is actually integrated into the games though, wheras so far origin has just been a delivery mechanism. I got MoH on Origin because their servers are faster than steams, but if you have the steam version of MoH you don't need origin. This could have course change, by my gut feeling is that you will need to be logged into battlelog, not origin.
When it says logging in, it loads Origin, this is to check the game is up to date I think, not sure Steam can do the same function.
Not a fan to be honest.
). Generally why it has momentary push button activation as a laser point might not a fixed on/off. It also has a very small focus area in order to obtain concentrated light.

