You can now download Redsn0w 0.9.6 beta 6, an updated version of redsn0w that supports SAM to activate iPhone without SIM. Redsn0w 0.9.6b6 is available for both Windows as well as for Mac OS X and has an additional option to deactivate iPhone and revert back to official Lockdowned version so that you can activate with SAM. This option is particularly useful for those who have used either of PwnageTool or redsn0w to hacktivate iPhone.
After deactivating, you can activate iPhone with SAM. This will improve your battery time, especially while you’re on 3G network. Here are download links:
Download Redsn0w 0.9.6 Beta 6:
Windows: redsn0w_win_0.9.6b6.zip
Mac OS X: redsn0w_mac_0.9.6b6.zip
Daoud says: 
