"The other reason is Microsoft’s own field sales team are pushing Windows 7. The goal for Microsoft’s fiscal year 2013 is 70 per cent of enterprise PCs running Windows 7."
This is not surprising, Win7 is still Redmond's main platform for enterprise and I would have been astonished if they really thought that they could get a significant proportion of those business customers who are only now transitioning from XP to jump straight to 8. I get a strong feeling that whatever MS is saying publicly their strategy overall for the current product cycle will in reality be "twin prong", ie both 7 and 8. I believe that as far as they are concerned 8 is there to save a place for them in the tablet market rather than being their main effort overall whilst at the same time (in the form of Win8 rather than RT) still being compatible. How successful this attempt to straddle two horses at once will be remains to be seen but it is clear that that is what they are trying to do.