AMD is in the middle of a transition to a new processor and motherboard chipset and that always is a hard transition especially when new memory types, new chipsets and a new CPU Socket. The Socket AM2+ has served AMD relatively well over the last few years. Today AMD is launching their first 45 nanometer process CPUs in the form of Phenom II which will have CPUs that use the older AM2+ and the new AM3 CPUs.
Gigabyte manufactures motherboards, video cards, and other computer related equipment. Over the last 22 years Gigabyte has been considered one of the Tier-1 Taiwanese motherboard manufacturers and is considered one of the best motherboard makers by many enthusiasts. Today they are launching their AM2+ based motherboard MA-790GP-UD4H which is their latest in a long line of motherboards with the AM2+ Socket.