I just tried AWOL's code, still a no-go. I get the same issue - the handshake/setup completes, and I get one line of data after that:
Finished setup
100 100 100 100 100 0 0
Then everything stops. I should point out that I have a nunchuck from INTEC, not nintendo... but seeing as it is made for the Wii, I presume it utilizes the same exact communication protocol.