If anything, it kind of reminds me of the Super Aguri livery from last year, probaly because this is white, black and yellow when theirs was white, black and red. Like I said before, Wikipedia has an external link to a Portugese news source that says Brawn GP will be running a blue-based race livery in keeping with their major sponsor, allegedly someone who has never before been involved with Formula One.
That's kind of at odds with the unwritten rule of liveries. Most teams will not run more than three primary colours (primary as in major colours, not yellow, red and blue), because when you get to four or more, it's all over the shop as Renault proved with their original ING livery of yellow, white, oragne and dark blue.
That said, I like what Brawn have done here, and I think they may even be able to get away with having four colours. The black and yellow sections of the car are areas that are very rarely given over to sponsorship decals, probably because they're too unwieldy to work around. This way, they've got markings that identify the cars as being Brawn Grand Prix, but still have room left over for sponsors. It really reminds me of the good old days before advertising when cars used to run their national colours. Oddly enough, yellow and black are the national racing colours of Cuba.