From The Register, quoting Executive Director Joris Komen:
“It became imminently clear that the development of a potential Microsoft alternative to our viable Open Source LTSP refurbished LAN solution at five pilot schools in Katutura would incur considerable cost for SchoolNet, given the revised understanding that Microsoft would not be paying for the refurbished hardware, but would only provide the software platform at some unknown Research & Development (!!) cost resulting from co-opting expertise from other third-party Microsoft partners.
“Such a change of direction would result in SchoolNet having to pay out in the order of US $4,500 per school to provide Microsoft with a significant educational branding opportunity in Namibia, coupled with free technical support service obligated by SchoolNet to all its school clients, in an extraordinary deviation from SchoolNet’s commitment to provide skills development, technical support and helpdesk services to its Open Source LTSP LAN school clients and Linux-PC teacher clients.”
Linux is the right choice for schools. The key requirement in countries like India is the support for local languages.