if u have a brand new OTB 1.1.3 iphone, its NOT unlockable even turbosim for now.

if u have 1.1.2 using Turbosim, u can use 1.1.3 only in soft upgrade method.

if u have 1.1.1 or lower iphone, yes u can unlock now to 1.1.3.
(but believe me, it a lot of process.. take time and sweat!..)

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PEACE NOT WAR FOR 2008!
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also if you are iphone user, check this forum:
http://www.qatarliving.com/node/44597#comment-250429