SongYang X25 RC car-quadcopter hybrid is pretty cool, and with a good price, have two version: Standard and Advance, the difference is advance version equipped with a 2MP camera, it cost $57.99, the standard for $46.99. You can pre-order from GeekBuying.
The X25 equipped a 3.7V 650mAh battery, it incluided in the package, the duration is 7 minutes, recharging time about 90 minutes. It support one key to return function, makes it easily to find the way home, with two speed switch, control more freedom, you are free to choose the mode; 8 Channel which can do ascend, descend, forward, backward, left sideward fly, right sideward fly, rolling 360° , four Direction Control on the ground. With colorful flashing light, possible for night fly. The remote control distance of 2.4G transmitter more than 60 meters, but you have to buy 4 AA battery, it not incluided in the package list. The quadcopter size is 23.5*17*6.5 cm (L*W*H), weight 150g.
Standard Version (Without camera) http://goo.gl/CAm1Mf
Advance Version (With camera) http://goo.gl/k1GqHB
I like it very much, easy control and it can fly also running on the floor, and the look is cool, it's very enjoyable, and have a reasonable price.
SongYang X25 3D Roll RC Flying Car Promotion Video