Gartner doesn't provide details on server sales by operating system, as IDC does, in its public documents (you have to pay if you want to see that), but it does break it down into X64, RISC/Itanium Unix, and Other. Gartner believes that X64 server shipments fell by 23.9 percent to 1.65 million machines, and revenues declined by 27.1 percent to $5.45 billion. On the RISC/Itanium Unix front, shipments were down by 31.3 percent to 64,510 units, but revenues only dropped by 20.4 percent to $2.95 billion. Other machines accounted for a tiny 7,343 units, down 26.1 percent compared to the first quarter of 2008, but revenues were only down 19.3 percent to $1.76 billion. Mainframes are in this Other category, and maybe IBM's Power Systems i boxes are. Maybe not. Gartner doesn't say.

There has been no breakdown of Intel versus AMD yet. Apple has still only sold 12 netserves.