Brian,
as you mentioned OSDP is future of Standard Access Control Protocol [like, Currently Wiegand]. I wish it will, as Biometric reader needs two way data transfer and it is not possible through existing wiegand protocol.
But, still I have not seen/heard installations of different reader with third party panel over OSDP due to it's lower acceptance in access control manufacturer.
Like ONVIF, is there any specific group of manufacturer or organization which is promoting OSDP ?
On which basis we can predict, other manufacturers will include OSDP in their future products ?