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I can reproduce this problem on OSX 10.8.2.
The Wii Remote Plus (built in MotionPlus) use a Bluetooth model RVL-CNT-01-TR whereas the older Wii Remotes use model RVL-CNT-01. There are some reports where some Wii Remote Pluses still use the old Bluetooth model, but I cannot personally confirm. These newer Wii remotes are now the default controllers that come with the new Wii U.
I get the same console error messages.
It pairs, but disconnects almost immediately (sync button is required for initial pairing, 1+2 nor sync will hold the connection after remote is paired).
I can get the same remote working on Dolphin 3.5-322 gamecube/wii emulator, but it cannot be paired via 1+2 anymore (only the Red sync button). Neither method works for Remote Buddy 1.23. Will definitely buy RB once I can confirm that it works with the Wii Remote Plus.
DarwiinRemote does NOT support Wii Remote Plus too (as if Mountain Lion didn't make this hard enough); I have yet to find someone with a working IR mouse implementation with the newer Wii Remote Plus.
EDIT: WJoy 0.5.1 I can confirm pairs with the RVL-CNT-01-TR model on OSX 10.8.2. The program and source can be found in the creator's google project page.
http://code.google.com/p/wjoy/
Last edited: 31.01.2013 07:14:25
Last edited: 31.01.2013 07:14:53