I can ONLY speak for Motorola Droid Bionic, but am guessing other Motorola phones around the same time will experience the same issue where the Wiimote will connect with apps like WiiMote Controller and you can see keypresses, but in emulators keys can't be mapped.
The last post on this thread (
Issue 116 - android-bluez-ime - Wiimote not working Droid Bionic - A Bluetooth IME system for connecting gamepads to your Android - Google Project Hosting) makes it sound like a Blur issue. I've tried other ROMs for the Bionic based on Gingerbread, like Eclipse and Liberty with no luck, works same as stock when trying to connect Wiimotes.
I DID get the wiimote working though, on an ICS ROM for the Bionic. But I had wanted to use HDMI out to put phone screen on a projector screen so this option will not work for me in the end.
Anyway, I think you have the same issue where something in Blur prevents proper handling of wiimote connection.
Thanks,
Paul