The Christmas gift that Cheshire gave me -- wii fit -- is proving to be very interesting to Julia. She is running, biking, doing step dancing, and a little bit of yoga. Plus, having her own mii that is weighed and assessed each time really helps her to keep focused on taking in enough calories to gain weight. And plus, plus, there is a "meditation" game that helps her do her strong sitting.
And yes, I am using it as well. Thank you, Cheshire!!