It’s official- as of August 31 2009 00:00, I have been running Linux for three years. I have gone through OpenSUSE 10.3 through 11.1, fumed at the half-baked release of KDE 4, and cautiously watched it improve while still running KDE 3.x. I bought a notebook and use it both wired and wifi. I also dual boot it with Vista, but I have my reasons. How long have you been running Linux?
