From the Razer press release:

“It has been a little over a decade since StarCraft first rocked the video game industry and began a legacy that continues to this day,” said Robert Razerguy Krakoff, president, Razer USA.   We’re extremely excited to be working with Blizzard Entertainment on the StarCraft II gaming peripherals and gear. The project is in the development phase with a focus on serving up innovative features while offering precision, cutting-edge technology, accuracy, speed and comfort.

The peripherals will include a tournament-grade mouse, keyboard and headset, as well as a specially-designed messenger bag.  Just another example of how the marketing of a game doesn’t have to just be on traditional media, but can extend to things (like peripherals) that target your core consumer.