I am using TurboSim and I can confirm the exact same issue. Every time I try to go to the Dial Pad, the Recent List, or to the SMS application, it crashes and sends me back to the SpringBoard. I uploaded the applesaft-test-exploitable.trb file to my TurboSim using a nokia 6230i. I get a new menu under Turbo Sim called Apple Saft. But I don't find "Exploitable" anywhere.