Appropriate? I'd say it's safe, has no small elements, isn't a choking hazard, is made of plastic and powered by low-voltage batteries, so even tasting it won't hurt. But should you buy one for your toddler? I'd say no.
Consult these two articles from babycenter:
While I understand what you want to do seems harmless (and actually I have myself considered introducing my toddler to some kind of games), I think that it is still too early.
First of all, I think a child should spend as much quality time experiencing the real world as possible. I would argue that games or tv are actually factors that interfere and disturb with that process.
Secondly, I suspect that between 1 to 3 years a lot of character and personality is built. I don't want my child to be a couch potato/computer games addict. Yes, these are extremes, used to make a point, and at this age nothing's decided - but let's push our kids towards the "good" activities. They'll have enough computer games when they grow up some more.
If by any chance you are getting bored and have no new ideas what to do with your kid just take out your toolset (supervise!) and see what happens :) Or an old bicicle inner tube. Just take look around your closets and shelves and find something your LO hasn't discovered yet.