Re: Hmmm
Amazon (and others) seem exercised that Microsoft's iron grip on the desktop/Office market gives it a leg up in the cloud market. It's also true that Microsoft has been very reluctant to see virtual desktops outside of its own cloud and has only relatively recently allowed a number of Office 365 apps to run on Amazon Workspaces.
My personal view is that there is only a limited remaining time in which Windows and Office are independent products and that they will simply be folded into Azure - and at that point Amazon will be able to complain about vendor lock-in exactly as much as Microsoft could complain that the Amazon retail store doesn't run on Azure. In other words, crying "competition" is a lever that's becoming rapidly shorter - at least until such time as there's serious talk about unbundling cloud services, when you'll really hear the providers starting to scream.
AWS has roughly 30% of the cloud computing market (depending on who you believe) and Microsoft around 20%. Microsoft's share will almost certainly grow, but a lot of that will simply be the displacement of traditional, on-premises business into the cloud. I can't honestly see customers heavily invested in Microsoft solutions decamping to AWS in large numbers. However, execs get their jobs by beating their chests, so that's what they'll continue to do.