Yesterday I purchased "DSLR Controller" (DSLRC) app for my Toshiba Thrive (TT) 10". I have to say that's a pretty slick app and I'm looking forward to future enhancements by the developers.
My intended purpose in using app and TT was to shoot night skies with hopes of zooming in on stars at 5x or 10x as to gain crisper focused shots while having the larger screen size, compared to the camera's small LCD screen.
My first test - camera pointing towards the night sky using ISO's between 1600 and 3200, and exposures at 20 sec, I noticed on the 7D that when you tap the 5x or 10x live view zoom in the DSLRC app it really enhances the noise. It reminded me of how snow looks on a TV set -- many multicolored dots dancing on the screen where it was almost unusable for night sky photog. The 5D2 showed much less dancing noise so it actually was easier to manually focus on stars at 5x or 10x using DSLRC. The clouds started to move in and the mosquitoes got worse (forgot bug spray) so my test session got cut short rather quick.
I'll be doing more testing this week once I have a clear sky again as to see if there's a solution to seeing better on the TT with this app as to assist me in focusing better using the 7D w/10-22. If anyone already knows of a solution (camera setting) for reducing dancing noise on the tab I'm all ears!
To quickly mention - DSLRC normally works fine on my T1i, 7D and 5D2 while recognizing these bodies. Connection to the Tab w/app use the included USB cable that comes with Canon bodies so that was a plus.
The TT might not be the lightest tab in the current lineup available but being able to sit in a lawn chair with tab on my lap and camera pointing at night sky atop a tripod is pretty comfy.
Yeah, I haven't played with this app much yet. Where I live, there really isn't anywhere good to take photos. I am currently using the Acer Iconia a500, but I'm wanting to try out an ASUS Transformer as well and see which I like better. I do love sitting in a chair controlling my camera up on a tri pod though The only real test I've done with this program was during the day, trying to take some long exposure shots of water, but I didn't have a dark enough ND filter lol.