Hmm. I'm using whatever version of hid-ntrig ships with vanilla 3.4.x. I don't know how to check for a specific version number... modinfo gave me:
vermagic: 3.4.7-1-ARCH SMP preempt mod_unload modversions 686
But looking at git.kernel.org, I see that that last update to hid-ntrig was March 2011, so it would make sense if that's the version I have as well.
I'm trying to develop apps with multitouch and I want to be able to receive touch events from X11.