The Pixelito might not be available to buy, but you can buy a helicopter that Alexander Van de Rostyne (the designer of the Pixelito) designed.
The Picooz from Silverlit was designed by Alexander and it is a great little indoor copter.
http://www.silverlit-flyingclub.com/It doesn't have counter rotating double blades, which I think is good because the double bladed ones don't look like proper helicopters in my eyes. It has a small pair of weighted blades that spin with the main blades, which provide auto stabilization.
It is two channel, throttle and tail rotor.
Out of the box you don't get much forward flight, you can either add weight to the front (they provide stick on weights in the box) or stick a small wind deflector on the front to catch the rotor down draught when you throttle up.
I have even managed to fly mine outside on a very, very calm day.
It only costs about $30/£20.
If anyone buys one, make sure you get a real Silverlit one. There are lots of clones about and in my experience they don't fly well. Unfortunately there are plenty of people claiming to sell Silverlit ones who aren't