How Many Versions of Windows 8 is Too Many?

It appears that Microsoft is planning 9 potential versions: Windows 8 Starter; Windows 8 Home Basic; Windows 8 Home Premium; Windows 8 Professional; Windows 8 Professional Plus; Windows 8 Enterprise; Windows 8 Enterprise Eval; Windows 8 Ultimate; and Windows 8 ARM. That is two more versions than what was in Windows 7.  These versions were garnered from a peak into HKLM\SOFTWARE\MICROSOFT\WINDOWS\CURRENT VERSION\COMPONENT BASED SERVICING\PACKAGE INDEX\PRODUCT which may have been first discovered and referred to in an Engadget…