I do have it on my desk actually, although I don't have any problems with that normally, most keyboards have a curved or slanted edge on the front so it's not so bad, just the das drives me nuts, i guess that little extra bit of height is just enough to make a difference. practically half a centimeter higher than all the other keyboards I have which is somewhat significant to me...I mean, I guess they have to have room for the cherry switches under it, but still, no taper/curve or nothing...just a harsh right angle. I'm not too sure how I feel about installing a tray though, only because my legs are pretty close to the desk in the first place, I have a feeling i'd be bumping my legs a lot. I find that playing my various instruments often causes me more wrist pain than any typing and I'm usually typing all day, often on a rubberdome at work (ugh)...