I've read the "best chess app" thread, but I'm looking for something different: I'd like recommendations for the chess application that would help me *learn* the game of chess. A desktop-based game wouldn't work for me because the only place I have a computer is the office--and that's when I should be working I know the legal "moves" of the various pieces and I've tried a few games with my husband, but I'm always so darn overwhelmed doing so that it's not a fun--or learning--experience. Hence, I seem to dislike chess. But, something in me tells me I could learn to like it, if only I could know enough about playing to enjoy the experience, not feel totally overwhelmed. Are there any iPod Touch/Phone apps that you'd recommend?