i tried psiloc on my 6670 and it didnt work. when i activated it, it said that the phone will turn off and that i have to remove sim card, and then turn phone back on. but it didnt work, the phone asked me to insert the sim card. although, if it had worked, that would be so annoying have to turn off the phone and take the sim out.....not worth it..
I Have written to Psiloc about the System Tools app not working on 6670. They said they will come up with an updated version. I am not sure if they have done it.