The plot has thickened as more details emerges in a PC World article.
The funder of 11000 of the 17000 classmate PCâ€™s is insisting that Mandriva remains on the machines, at least for now. This will have a big impact on the project as a whole, and Mandriva might just yet be the default system on all these machines after all.
In the article it also mentions that the Microsoft country manager for Nigeria, Chinenye Mba-Uzoukwu wrote that Microsoft is working on an agreement with the Technology Support Center (which seems to be an independent service provider in Nigeria) to pay them US$400 000 for marketing activities around the classmate, if they switch to Windows.
Hopefully this means the door is not cloased on Mandriva.
While I can understand the stakes are high for Microsoft, if only half of this is true, their ethics need questioning.