I played on a 52" high definition big screen for a little bit, it was interesting. It made the colors a little less richer, actually made them more realistic in my opinion. Around ten feet was the best distance, it was pretty easy on the eyes. I used the S-Video output on a laptop (pre-terrain update) and it worked nicely graphics wise. As it sits right now I play on a 1680 by 1050 22" widescreen, it lets me play quite well. The biggest problem with a big TV screen is logistics, cost, where to put, how to setup gear and etc. Once installed I don't think you would anything but nice things to say. I didnt see any difference in gunnery, basic ACM or visual cues like finding dots. If anything it makes spotting cons easier as the larger screen had larger dots at longer viewing ranges. Two to three feet is actually a piss poor distance for spotting small details I think.
At one time I had AH installed on three computers and used the same account on each depending on the situation. Even though I only have one account it never gave me an issue, I doubt its changed.
Strip