Recently my husband bought me a 3DS XL. Best present ever! On top of that, there is a program on there that is absolutely perfect for artists, if you haven't already heard of it or have it, it is called Colors 3D. If you have a 3DS of any sort you can draw, in 3D! Its a great digital sketchbook and there are weekly challenges to get your brain working. It's not just on the 3DS, you can get it on tablets and ipods too, however those won't be in 3D. You can view the website for colors at colorslive.com/
Here's some examples of the work I have done here: colorslive.com/author?id=11013…
The colors crowd knows me as Souri.
The only downside to colors is the lack of high resolution images, so if you do anything on it don't expect it to be anything huge, but that's why it's just a sketchbook of sorts. It's easy to carry around with you and you don't use up tons of paper yay! Everybody is happy!
Oh and it has playback which is nice for those who haven't experienced that in their art yet. It's really cool.