While not a tablet per se, I did get an iPhone 4S and mostly use it as a portable Wikipedia. Also enjoy using imdb.com whenever I'm watching TV and have one of those "uhm, haven't I seen that actor/actress somewhere else before?" moments.
I've also used it as a B-cam a few times with decent results when there's enough light.
Cameras: Canon EOS 6D, Canon EOS Rebel T3i, Canon EOS Rebel T2i, Canon S90
Lenses: Tamron: SP 24-70mm F/2.8 Di VC USD, SP 70-300mm F/4-5.6 Di VC USD, Rokinon: 8mm Fisheye cine, Canon: EF-S 18-55mm f/3.5-5.6 IS Lens, 75-300mm f/4.0-5.6 III, and EF 50mm f/1.8 II
Retired camera: Fujifilm Finepix s700