Ok folks, I think we have a favorite between Artflow, Inifinate Design and Autodesk Sketchbook. They each have logical interfaces but the slight edge went to Sketchbook for me. Seems it better accommodated my way of fussing and fidgeting. The clincher was that Sketchbook also had a pen setting to prevent the hand/fingers from marking the canvas while using the pen. If you don't know wonderful this is try drawing with your hand resting on the tablet surface. Erasing erroneous finger marks can be annoying.
Another drawing problem I have is my fingers passing over the lower right hand corner where the settings pop-up gets activated. I gets this when holding the tablet with the wide side horizontally. When I turn the wide side vertically I can draw higher in the screen avoiding the active area. There are some who wear a "drawing glove" to disrupt the capacitive connection between the screen and your hand. Ooh, that sounds cool, gotta get me a drawing glove.
So, what is missing in the tablet that would make my day, a big honking solid state hard drive of about 128 gigs, but it's OK.
Also on my wish list is Gaussian blur on the Vector Artist app and all the drawing apps having that pen setting that is in Sketchbook or put it in Android OS for tablets.
There is an app that looks very interesting and I want all you 3d tablet jockeys to check it out. Spacedraw is the only fully functional 3d modeling app on the Android platform. Some said it is like Blender only lightly so. The interface is made for tablets and quite agile but, not a easy learn for me. I will keep poking at until I can do something with it. I am grabbing Trimble's Sketch Up on my PC, that is fairly easy to use compared to Blender. Still, Spacedraw has potential, good potential. When you "get it" please do some tutorials, please.......