Anti lag on the focs RS with a GT28, i think would be pointless, as there is not enough lag to justify it, just get a good aftermarket flash or piggyback chip no need to go for full independent management,
i beleive the dreamscience has a launch control function, but the dastek unichip is a good all round chip and has a lot of features such as launch control etc, and can be remapped everytime you make further modifictions to your engine, and is more than capable of handlig very high power focus RS, it is the management i am currently using in my Focus RS, and it is sitting above 400bhp and about to go further,