Design Review has been around on Windows for a good few years now and has now been released for your favourite iOS devices (iPad, iPhone, or iPod touch).
What does Design Review Mobile do? Well it allows you to view, mark-up, and annotate drawings on your mobile device when you are out and about.
I would have thought that Autodesk would be working on combining the features of Design Review Mobile and AutoCAD WS into one mobile device, but we will have to wait and see if that ever happens!
Check out Design Review Mobile over on the App Store. No word as of yet on an Android version.