I have one of these on my kitchen table and I really like it. I use it mostly as an internet radio. I stream Pandora, Slacker, and NPR. I don't have a lot of space in my apartment, and this is great for listening to music while cooking or eating dinner without having to have my computer out.
It is basically a souped up internet alarm clock. I bought mine when they had a valentine's sale (for about $80). You probably also want a Fuji NP-120 battery, which is not included. I got one for ten bucks on amazon. The chumby charges its own battery while it's plugged in.
The apps I like are mostly news, weather, games, word-of-the-day type stuff that rotate through the screen for 30sec to a few minutes each (you can set that). You can get your facebook feed. I haven't tried the woot app. Mostly I use it to listen to the radio and have a fake fireplace or lavalamp on the screen.
Overall, more useful than a leakfrog, and cuter, too. It's a little ridiculous, but I like it anyway.