CC3301MOD: Production date, RTOS integration

Part Number: CC3301MOD

Tool/software:

1. Is there a production date for this module?  There seems to be no stock on it or any of its relatives.

2. Where can I find the integration libraries for FreeRTOS?  Also, what is the binary size for the module?

3. About modular approval, is this still applicable because of customer designed antenna pad, or is there a guide with approved layout and antenna's?