Wii Fit Plus is the follow-up to the hugely successful Wii Fit, which has sold over 700,000 copies in Australia to date. (Plus 15,000 in New Zealand, the press release adds. Aww, bless you, New Zealand!)
New stuff includes include the option to customise and design your own work out, additional exercises, estimates of calories burned, 15 new balance games, and an option to weigh your baby and even your cat and dog. Not sure if there are separate work outs for your pets.
You can buy the full bundle, which comes with everything from the original Wii Fit, all the new stuff from Wii Fit Plus, and the required balance board, for $159.95. Alternatively, if you already own Wii Fit, you can pick up the Wii Fit Plus standalone disc for $29.95.