I think it would be great to add on website list of tablets, on which your program will work perfectly.
We doesn't have all tablet on the market at our office so it's impossible for us to maintain such list.
For Black Ink the most important part is the GPU used by such product. Try to find the best possible hardware in this area and follow instuctions given in our FAQ :
You can visit this website
and look up your video card. For a good performance a "G3D rating" of 500 is needed but we recommend a rating of 1000 or above for the best experience.