King Six -> The logo is painted on, it's just a 3D illusion (again!!! after all the asymmetry stuff!). It's hard to notice at first, but the light always seem to shine from the same angle on the logo (top left when you look straight at the nose of the car), as opposed to the light on the nosecone. Merc has a hell of an airbrush artist on their team!
Macxtor -> Mercedes are starting to experiment with the bending wing, and the one they used in Australia was bending to some extent (although nowhere close to the amount on the Red Bull or the McLaren).
Although the rules are not enforced at the moment due to an inadequate FIA test, the Red Bull and McLaren wings are illegal. Mercedes might not be willing to put a lot of money and work hours developing something that might be useless in a couple of races if the FIA updates their test.
Ross Brawn should be familiar with the concept of flexing bodywork, since it was his technical team that introduced it back when he was technical director at Ferrari. They had bending fins on the engine cover which flattened out at high speed to reduce drag, and then used something similar on their rear wing. But it seems the FIA reacted much more quickly back then to ban the technology.