No official announcement is out yet (Though I do believe it is on its way out).
Also...even if it is discontinued, it will still be around for 10 years or more...
And for small businesses, there are plenty other systems out there that will fufill their reqirements (and probably better than the Partner ever did...) such as the NEC/DSX and Transtel products...and I know there are others out there.
I have installed several, and they are not real flexible, but hey, they are an option.
