I installed tweakr on PR1.1 (Global firmware) but right after saving 2-3 new presets and giving a reboot it start an endless reboot cycle.
I reflashed with the same PR1.1 Global firmware and reinstalled all the application I had except tweakr, I tried to reboot and everything was ok.
Then I installed tweakr (latest version available yesterday on the repo), I launched it without changing any setting, tried a reboot and was still ok.
Then I saved 3 presets, tried a reboot.... and I was stuck again in the reboot cycle!!
Now I reflashed again and won't install tweakr again... that's a pity!

Roberto