Found a pretty cool Android app from kaipic.com
Doesn't use the phone's camera, well not on mine.
But you can use in TV, AV or M mode and select an EV setting (EV6 brightly lit interior)
And then select aperture (in AV mode) it will then display shutter speed.
Can also dial in the point of focus for a lens and a film format, and it will then tell you the DOF for that aperture
Aperture from .95 to 22 and shutter speeds from 4 to 1/4,000
Lenses from 7mm to 400mm
So...
200 ISO at F16 in a brightly lit interior shutter speed of 2s
80mm lens on my Mamiya 7 focussed at 18m the hyperfocal DOF would be 4.9m to infinity
Nifty