Some years ago there was a lot of talk about the Optimus keyboard, a device on which all the keys were tiny LED screens, with the result that, not only did it look very cool, it was completely customisable.The only problem with it was that it turned out to be extraordinarily expensive - somewhere in the region of a thousand dollars. Which in turn means it's extremely rare, too.

A more affordable version popped up this week in Thinkgeek's monthly email. The US shop is selling the Luxeed Dynamic Pixel LED keyboard, a snip at just USD200. While it can't display custom keys, it does have 430 LEDs, allowing you to light up each key in whatever colour you like, and even to do tricks such as displaying a rainbow across the breadth of the keyboard.

It's pointless, true, but it's still very impressive. And in a non-tech-related vein, but from the same email of new products, Thinkgeek is selling flavour pils, in the form of Miracle Berry Fruit Tablets, which make sour and bitter foods taste sweet. Now that's the sort of future science I like.