At 08:12 PM 8/14/2010, Scott Daniel - Turbovans wrote...

>though I was awfulling impressed with a phone that had a carpenter's
>level
>function ...
>and I just can not imagine how that device does that, it's fully
>electronic,
>no bubles or anything.
>A chip that can tell if it's level or tilted ?

Yep. Solid state accelerometer. Well, solid state in the sense that
it's all done on-chip, the actual sensing is a strain gauge formed in
the silicon.

Here's a datasheet for one:
http://www.google.com/url?sa=D&q=http://www.st.com/stonline/products/literature/ds/15094.pdf&usg=AFQjCNHyglsHNnlm1TLp28NaR1t0dlcz6A