[hpmaxim]

Gator, I just tried the demo of Pocket Kai Bubble Level. I'm more impressed by it than waterlevel, but not by much. It has two big problems. One they claim its sensitive to roughly .18 degrees, but as you can see from the picture, they only show it to 1 degree. They also seemed to make the absurd decision that they needed to emulate a "real" level so badly that they intentionally limit how off-axis you can be to somewhere between 30 and 45 degrees depending on which level it is. I see no functional reason for this from a software perspective. In "calibrate mode" you can see the full-swing of the accelerometer, but I suspect this in some acceleration unit (~-1000 to 1000), so it may involve some significant trig to convert it into degrees.

EDIT: Ooops, it does have the X/Y thing on the main screen, but it does get goofy at high angles. I think this may be sloppy math on their part. Sine works great at low angles but at high angles it starts becoming a pain and vice versa for cosine. So depending on the angle they need to calculate it differently. Maybe I need to write my own app.