My next robot project will be a tank based plattform, but first I need to finish YAABR. After I see this spy toy at Amazon I need to buy one. It is a very good fabricated toy and also very pricy. I paid 50€ for it at myby.com, at Amazon you get it for 56$. For that money you get a tank platform with wireless video camera (320x240 bw, 2.4GHz) and microfone, a RC control (27MHz) and a head-up Display with LCD screen and ear phone. Not bad.
Here is a look inside, after removing the top chassis.
Don't open the motor and gear box, I warn you. It takes me 1/2 hour to get back all gears in the right place :(
More pictures at my Flickr page
Hacking this beautyful toy is fairly simple. I think I will keep the electronic mostly untouched. Just split the motor wires to a separate H-Bridge and use one or two switches to switch beetween RC mode and autonomous mode.
https://www.youtube.com/watch?v=qx7EmS2QVzw