I signed up for the one month version....I think it was $14.95. I might change that to a yearly subscription but right now I just don't have the money to do that.
I think it's really going to help me learn to use my right hand again. It's numb and I use my left hand almost exclusively now. This will encourage me to use my right hand and get better coordinated with it.
Oh, and I played Penguin Pursuit and yes, it's totally addictive!