The National Broadband Strategy proposes subsidies be applied towards increasing access to Set Top Boxes (Decoders) etc - not sure about transmission networks. From where I stand, the higher priority access challenge is in making decoders readily available to all. CAPEX for transmission has been eliminated for all CSP by having BSDs handle that. The operating (or maintenance) costs are not high enough to justify intervention from the USF.
Refer to the NBS2013 / Broadband4Kenya which was launched by the CA.