When looking at my local army-surplus store, I saw a Leatherman Micra with a red and blue colour!!
I thought Micra's where only available in stainless?

nope, they really are availible in multiple colours. I think the colored ones look a bit ugly, though...

I don't have a Micra, but I have a new P4 Squirt in blue. I really like how it looks now, but we'll see how it looks after a year or two....

It is usually a plastic cover/sleave over the metal. The plastic can make the tool bulky which can be a good or bad thing.

I've seen the colored versions at REI and bought a gray one. The various hues of blue, green and red just don't seem right on a tool.

Red would make it somewhat easier to spot if dropped I gues.

I'm pretty sure Leatherman's going to retire the Micra or day or the other in favor of the Squirts... don't you think ?

Maybe. They don't have to retire it, but I prefere the Squirt.

I have a blue micra that I bought used from someone on CPF. There's very little blue left on it, but for $5 for an otherwise perfect condition Micra, I'm very pleased.

The micra's the color was just painted on and wore off easily.