TG Daily reports Intel licensed DisplayLink's technology to offer quad-display support on the G45 IGP chipsets:
The number of monitors supported by one system is typically limited by the number of graphics card outputs, which is a nice for Nvidia and ATI, as it enables both companies to sell their low-end GPUs as more expensive Quadro NVS and FirePro models with four display interfaces. The other alternative, of course, is DisplayLink, a company that specializes in transmitting visual data through a USB link. So far, DisplayLink support was only provided to displays that included the firm’s DP-120/160 chips.
DisplayLink has decided to provide its technology through a license model and it appears that the first major customer is Intel. According to DisplayLink, Intel's 4 Series chipset for desktop and notebook displays will support four displays at the same time: Two displays are supported through conventional outputs, while two more displays can be connected via USB 2.0.