I tried 2 wiimotes, but for about a week or so, and not much. I got it just before the last week of school, and now school is out for the summer. Here’s what I’ve noticed:
It takes about twice as many restarts to get both wiimotes working.
I haven’t noticed any real improvement in accuracy.
The main reason I wanted 2 wiimotes is so that I could have them both covering the same area from different angles so I wouldn’t have to worry about the students blocking it when they write. I haven’t been able to find a good way to make this happen. This isn’t any reflection on the software, of course, but it is an issue.
I wish I could give more feedback, but as I said, school is out and I’m busy with classes.