There's absolutely no doubt that chess is one of the most easily accessible games around. It's even more true nowadays that there are all manner of portable devices - from netbooks to personal game consoles and, of course, phones - that allow just about anyone to play a game anytime.
Here are a couple of recent releases. First, there's something called "Battle vs Chess" and, for the Nintendo DS, "Absolute Chess".
Yet, despite its ubiquity, chess still struggles to crack the mainstream.