Jepp så är det
Virtual PC and the new G5
http://www.shahine.com/omar/PermaLink,guid,e706c1bf-87fe-4cd0-aa78-a78ac023cd4a.aspx
]Business week just ran this story on the incompatability of Virtual PC 6.1 for Mac (the version we just shipped) with Apple's newest hardware, the G5 Macintosh.
If you are wondering why this is, they actually get the facts right:
The reason for the incompatibility, according to Microsoft, is that the current version of Virtual PC for the Mac relies on a feature of the PowerPC G3 and G4 processors called "pseudo little-endian mode," which helps boost performance of a Mac when it is trying to emulate a Pentium chip.
"Because the new G5 processor does not support this feature, large portions of the (Virtual PC) for Mac program must be rewritten and carefully tested to work properly on the G5 CPU (central processing unit)," Microsoft said.
In fact, VPC is probably one of the only Macintosh programs which switches the PowerPC G3 and G4 chip into little endian mode to support faster emulation. You see Computers based on the x86 architecture (Windows PCs) are little endian. Macintoshes are big endian.