I doubt they would be on here if they've gone, unless they're posting from Brazil. Everyone will be there by now. But yes, there are plenty of Brits going, I know a guy who's gone.
At least we've got some Brazilian weather. Get out there and pretend you're in Rio. Samba on down to Tesco and pick up some beers. There's some lovely girls around and at least over here you can be pretty sure it's not a bloke in drag.