I found under, Learning Art and Music Games for Kids, several interesting games. Art at the Getty had Detail Detective and Match Madness that I think students would have fun with and would learn art concepts at the same time. Using them in a center would be a possibility.
I will continue to add technology where I can in my classroom. My vision is to use more each year, a little at a time, one step at a time.
I was surprised at the amount of information that is available once I started going through the different tools.