Source from :NEW No 112 Geveypass Iphone4 Unlock Sim Card Deluxe Edition  - US$ 17.99 : CasesInTheBox.com
Geveypass just need to dial 112 once then it automatically unlocks the iPhone 4, which is same with Gevey Surpreme.
But Gevey Supreme needs to dial *112 and then reboot the iPhone 4 to enable GPRS 3G function. Geveypass you dont need to do that.
Basebands 1.59.00 / 03:10.01 / 02.10.04 / 04.10.01 running iOS 4, iOS 4.1, 4.2, 4.2.1, 4.3 & 4.3.1 4.3.2 4.3.3 without requiring you to your device
The Geveypass Pro Micro unlock Simcard is specialy Designed for the iPhone 4 and is able to by pass the network lock that restricts you from using other networks simcards.
The Geveypass Pro Micro sim card comes with its own Micro simtray to use with the Geveypass Pro
For iPhone 4 Unlock Simcard.
•No more using your phone as only an ipod
•No need to use any cables or softwares
•No need to load any kind of software
•Supports Latest iPhone 4 OS 4.1 4.2 4.3 4.3.1 4.3.2 4.3.3
•Fully Upgradable Firmwares
•Easy Unlock Solution for iPhone 4
•Supports All Networks & Countires
•iphone 4 Sim Tray + Pro Geveypass Micro Sim included in Package.
•No Loss of Warranty
•Free software Updates with optional Programmers
•Unlocks All networks & Countries Worldwide
Geveypass for iPhone 4 Micro Unlock Simcards Supported iOS BaseBands
Supported iOS Base Bands:
Geveypass for iPhone 4 Micro Unlock Simcards Supported iOS Firmwares
Geveypass Micro Sim Unlocks Firmwares:
Geveypass Pro & Lite Micro SimCard Features
Geveypass Micro Sim Features List:
•Works With All GSM CARRIERS
•Works With All 3G CARRIERS HOT**
•Keep your manufacture warranty
•GPRS / EDGE / 3G Data Connections
•Voice Calls Incoming & Outgoing 3G/2G
•SMS Messages Incoming & Outgoing 3G/2G
•MMS Messages Incoming & Outgoing 3G/2G
•FACE Time over 3G with Cydia Mod (Requires)
•FACE Time over Wifi
•2G Network Sim cards Supported
•2G/3G Network Sim cards Supported
•3G Network Sim cards Supported
•Software upgradable with Geveypass Pro Programmers
•Can auto Switch from 2G to 3G and Vice Versa
•Can Travel & have Stable Signal
•All 2G Network Sim cards Auto Network Detection without 112
•60% of 2G/3G & 3G only Network Sim cards Auto Network Detection without 112 & enhancements coming in free updates on downloads page.