Few hours ago I showed you an amazing video comparison between iPhone 4 and Nexus S. As most of you know, Nexus S is now available at BestBuy, so in case you are one of the early adopters of this phone, you may ask yourself, “how to root the Nexus S?”
STEP 1: Shutdown your Nexus S.
STEP 2: Hold down the Volume Up key then hold the Power key.
STEP 3: Now your device'll get in Standard Recovery Mode.
STEP 4: Now ppen command prompt or Terminal (depending on what OS you’re using, this is on your computer) then type “fastboot devices”. This will tell you if your phone is connected via USB or not.
STEP 5: Type “fastboot oem unlock” if you're connected.
STEP 6: Almost done, now use Volume keys to select ‘yes, unlock bootloader’ then use power button to select option and your new bootloader will be unlocked now !
For now, there is no custom recovery image yet and obviously no custom ROMs but they'll be out very soon. [via AndroidCenteral]