I've been reading mixed opinions. Some people say ZiPhone 2.0 (for the Mac) does indeed unlock a 3.9BL (thus creating a sim free iPhone and doing away with the need for anySIM), some people say it doesn't, and within the app it states '(only for 4.6BL)'. So I'm confused! I don't want to update my phone to 1.1.3 though iTunes only to find out that it wont work for me. Thanks!