Has anyone ported SimpliciTI stack to Arduino?

My main reason for asking is because I’d like to interact with TI’s ez430 Chronos watch via RF, I have one on backorder. I’m aware of the RFBee which uses TI’s CC1101 transceiver and the ATMega168, however that’s it’s own thing with it’s own protocol as far as I’m aware. I was really hoping I could use one of these boards from SparkFun to talk to a 433MHz Chronos:

However it’s a long shot that the frequency is exactly the same.
Thanks.