there is two way to unlock iphone without TurboSim:

1. Hardware Unlock

2. Software Unlock (using iPhoneSimFree Application)

1:Hardware Unlock

this method is so complicated and may break your iPhone , but you can buy unlocked iPhone, here is World’s Second Unlocked iPhone

Tutorial:

Step 9

• Step 8
• Step 7
• Think of how pretty it’ll be…
• A Little Motivation
• Step 6
• Step 5
• Step 4
• Zoomed In Step 3
• My Finished Step 3
• Step 3
• Step 2
• Step 1

2:Software Unlock

the first unlocking method was TurboSim but this method is hard and needs turbo sim and its software,iPhoneSimFree.com and iphoneunlocking.com promised they can unlock iphone only with software! iphoneunlocking software not tested yet. the software will release at www.iphoneunlocking.com between noon and 2 p.m. Eastern Time, he said.