[rp-ml] Mobile 2D/3D CAD Viewing Software

Anybody aware of a good way to view 2D or 3D CAD on a mobile device such
as an iPhone?

I just tried emailing myself a 3D pdf and the 3D functionality is disabled.

Is there a good way to get ACAD dwg dimensioned drawings and or 3D Cad
onto this device in an interactive way?

Currently my thinking is that one can email a "2D" pdf of the
dimensioned drawings or simply take screenshots and upload them to the
phone as jpg.

Anything new in this arena?

Thanks,

-- 
Jonathan
http://www.universaljointdesign.com
construction + design + development