Great idea, but need a little more to make it totally worthwhile. (Software/Game spoilers)
You start with inputing first & last name, birthday, and bloodtype for your profile and choosing your avatar. Then you go inside the house to access the features which include:
profile - Change your first imput info
schedule - Built for the student
budget - has to save after each calculation, only four slots
calculator - normal
notepad - qwerty typing only
friend directory - Same idea as your profile, but with phone number
diary - Typing again
"?" Gives you quick definitions on each category.
All in all, again, great idea, but for those die-hard Kitty fans a little more meat would've been nice to see. Especially where you can imput data, and as far as I've discovered, you're limited in how much you can put into it. It also doesn't recognize handwriting which could come in handy with the sound effects getting old somewhat quickly, or just turning off the sound completely.
More geared towards the teen without a cell phone, it is a good addition to your child's games, but I would suggest shopping for a good price as well and not paying for the hype.