Nvidia is working on a design that will integrate powerhouse SLI graphics into laptops. This design will feature two MXM graphic modules linked together for tons of graphical goodness. Unfortunately, more hardware means more weight so this concept will probably have to stick to the more desktop replacement type of laptops. SLI is already costing desktop manufacturers an arm and a leg. Expect to shell out even more money for those desktop replacement laptops featuring SLI. SLI will also eat at the battery life and make cooling problems out the wazoo. Just buy a desktop, yo.
SLI coming to laptops soon [Inquirer]