It will be interesting to see what is produced. There are a number of digital painting magazines already but they mostly feature concept art, fantasy, games art, etc. It would be refreshing to see a magazine that features Painter, PS, Artrage, Sketchbook Pro, PaintTool SAI, (vector?) that does not involve endless drawings of robots and scantily clad women with enormous weapons.
Personally, I was beginning to find less useful material in Painter Magazine as I became more comfortable with the program. I have no interest in the articles about turning photographs into paintings (I know they have their uses for many other people).
It might be the case (it's certainly mine) that many artists and illustrators (and photographers) rarely limit themselves to one program when working. Taking images from Sketchbook Pro to Painter to Photoshop, for example, is a useful way of working and helps bypass some of the shortcomings (bugs) in certain applications. A magazine that pulls these together is very welcome.