Mod note: This advice has been found to not be helpful. See HOWTO: Copy the hidden ix-apps dataset from one pool to another
Found a solution to this:
Stop all apps and copy .ix-apps to another location, rsync -acX /mnt/.ix-apps/ /mnt/apps_temp/.ix-apps
Unmount apps pool. Apps - Unset Pool
Chang to new pool. Apps - Choose Pool
Copy temp .ix-apps to new pool. rsync -acX /mnt/apps_temp/.ix-apps/ /mnt/.ix-apps
Check applications and they should now be on new pool, may want to remount the pool just be sure.