Where's my hoverboard? And other movie tech we want now

Twiki from Buck Rogers in the 25th Century
As long as it doesn't go all Terminator, robot servants would be very handy. Twiki isn't a particularly high-end model, but he's always finding things to do and he's a rather friendly little chap.

Where the hell is it?
Humanoid robots exist and they're not a million years from becoming your very own Twiki. Take Asimo, for example. Honda's robot can walks very much like a person and can even carry a tray. This technology has yet to hit the mainstream, but we don't think it'll be too long before robots are looking after you when you're old or doing important, dangerous jobs, such as reviewing technology.

I want one now!
Unless you can fork out hundreds of thousands of pounds to buy yourself an Asimo, you're going to have to settle for a much smaller, frankly less inspiring array of robots on the high street, including the Lego Mindstorm and the somewhat Popeye-looking Robosapien -- just don't expect them to make your tea.