iPhone Baseband Hacker Sherif Hashim has replied to a user in twitter that the unlock for iPhone 4 latest basebands (2..10.04 and 3.10.01) are coming really soon! About a month ago, iPhone dev team has released Redsn0w 0.9.6 b5 and Redsn0w 0.9.6 b6 by which you can upgrade to 06.15.00 baseband and unlock using their Ultrasn0w tool.
From Twitter :
Gerges2001: @sherif_hashim I’m going to perform military service by January 16, will I get the unlock before this date ??
Sherif_Hashim: @Gerges2001 sure
We will come with the update as soon as we receive further information. Check out our other posts before leaving!