Cannot wait to see the other teams RBR, McLaren, Ferrari and Toyota rub that smug smile off Button's face in the coming races.
I think you'll be waiting for quite a while. Once all the updates are in place for all the teams, I expect Brawn to be at the head of the pack again with Red Bull their closest challenger in Barcelona. There are a lot of factors that are being overlooked when judging Brawn's current performance 
While i think Max goes abit ott with his remark i sure hope its not a brawn whitewash like Oz
Well, I think Red Bull will be very close, but here are just a couple of things to think about:
Brawn have not brought updates to their car in the same way that other teams have over the past four races.
The Brawn cars, barring Rubens' front wing, diffuser and gearbox and the engines from both cars, have run all four races. Pretty much every other car on the grid is likely to have had new front and rear wings, engine covers and possibly even new suspension. So the Brawn cars are very stressed from more running than most other teams (I imagine Force India would be the next up). This is all down to a lack of spare parts - the team came to Australia with only four front wings in total and I think they've not brought too many to the races after that.
Brawn GP's aero package is probably the best overall on the grid. Looking at the testing times, they were much further ahead of the pack at Catalunya than Jerez, so I imagine they'd have a bit more advantage here on race day.
With a full update package and fresh parts on the cars, I think they'll see a significant enough performance gain to be fighting for the win again without too much trouble, although I certainly think Vettel and Webber will push them hard and I can't say too much about Toyota yet, but I'd be surprised if they weren't fighting for podiums at the least.