Both in the case of Office 365 and that of Azure they are selling you their cashcow (office and windows), only in a software as service fashion. Moreover, neit

Both in the case of Office 365 and that of Azure they are selling you their cashcow (office and windows), only in a software as service fashion. Moreover, neither is opensource, unlike cloud offering based on Xen or kvm, which are (at least to some extent). I fail to see how Sun fares worse in this comparison, if this was your point.