Auto3G Save battery automatically turning off the 3G

Update 2 : Version 3.0.2 released ! Crack is out !! [credits to Fabius]

Auto3G extends your battery life by automatically turning off the 3G radio (leaving on the 2G radio) when you lock your iPhone and automatically turning on the 3G radio when you unlock your iPhone. This way you always have the speed of 3G when you need it without the battery loss.
As explained by Apple, this results in up to 50% greater battery life: "7 hours of talk time on 3G, 14 hours of talk time on 2G." (apple.com/batteries/iphone.html)
Use the Auto3G icon to change settings 
Download 3.0.2 Cracked : Download

• 
  Correct bug mainly effecting Verizon users

Update : If you experience the issue "Your device is not authorized", here is the tip [Credits to geeknurse]


1. Install Auto3G v2.0.4 *cracked*
2. Yeah Yeah.... It will say that your device is not authorized... ignore that.
3. Open Auto3G
4. Disable Auto3G
5. Turn on Airplane Mode
6. Respring
7. Turn off Airplane Mode
8. Open Auto3G
9. Enable Auto3G
10. Enjoy! 

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