I just rolled out a new version of RU that makes it fully compatible with ICS. This release is also fixed a bug that you can not unfreeze apps once it's frozen on Samsung devices (including Samsung Galaxy Note) running on ICS. It's because the EBM policy issue. As discussed on xda-developer forum, it's certainly a bug on Samsung ROM. We can not wait for Samsung to fix the bug, the new version come with a feature: defrost alls command that can unfreeze all frozen apps in a click. This feature requires restart your devices.
Get RU from Google Play: https://play.google.com/store/apps/details?id=com.rootuninstaller.free