Download speed: Windows 7 vs. Vista vs. Ubuntu 9.04 vs. Ubuntu 9.10

Curious download speed contest: Windows 7 vs. Vista vs. Ubuntu 9.04 vs. Ubuntu 9.10
64-bit versions of Windows 7, Vista, Ubuntu 9.04 and 9.10 on the same hardware



The fact that 9.10 was loaded faster is expected, but the fact that Windows 7 is the other way around is quite strange.