As a developer registered with Apple I have access to Mac OS X 10.6.2 prerelease copies. With 10.6 the AppleRemote code was broken in the plugins so you can't use exclusive mode. But with Mac OS X 10.6.2 Apple fixed this, but they changed a few of the constants. So if you use at least the 9.7 plugin version, you have already the fix and your application should work very well.
10 11 09 - 00:17