Hi there, I'm interested in purchasing a bluetooth caller ID watch or bracelet, like this one: ThinkGeek :: Bluetooth Watch with Caller ID Display

Both are compatible to Bluetooth 2.0, I have no experience with Bluetooth so I wanted to be sure before I bought, will my Nexus One be backwards compatible? Being that it's 2.1? I thought it would be since the phone would be the master, but I wanted to be sure.

Please indicate if you have experience with this first hand or not in your reply. Thank you.