The Asus works great. You can make or find a piece of wood (or anything else the size of a phone) that would fit in the mount.
Put velcro on it and on the back of your pad and the created piece. Voila!
I even made a sunshade while I get the one off eBay for it out of a box of cereal, wrapped black tape around it and cut out a square hole in the back for the vecro strips to connect and it works and looks awesome.
The MemoPad runs for about 150$ around here in Canada, fantastic little cheap tablet.
I have used the iPad 2 with my FC40 camera. I have used my HTC EVO with it too and I prefer Android devices with this camera. Using iOS devices with it is flaky in my experience.