December 03, 2010 
SoSly 
A developer named sbingner has created SAM: Subscriber Artifial Module. SAM fixes all push errors pertaining to hacktivated iphones along with those having battery drain issues with new ultrasn0w unlock.
The Dev Team States:
Developer @sbingner (author of TetherMe) has made some excellent progress devising a new hactivation method that kills two birds with one stone for all you ultrasn0w unlockers. His tool, “Subscriber Artificial Module (SAM)” tricks your iPhone and iTunes into creating legitimate activation tickets even though you’re unlocked with ultrasn0w. This means you get the full benefit of push applications, and your battery life increases substantially. If you’d like to try it out, check out http://www.bingner.com/SAM.html
To help make it easier to try out @sbingner’s tool, we’ve updated redsn0w to include a new “Deactivate” option for the 3G and 3GS. Use this option *after* you’ve installed SAM…it will remove the normal patches made to lockdownd and let SAM take over. (sbingner plans on making a button to do this within SAMPrefs too). Great work, @sbingner!
You can Install SAM via iphonespot apps sections if you don’t want to add another repo, on the other hand the original repo to install the original debs is http://repo.bingner.com.
Download Redsn0w .96b6
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Will you still need to install Psh Doctor to enable Push functionality??
No you don\’t need push doctor just this and the deactivate methoed done by the new redsn0w
That’s odd… I received the your phone is activated message but I still do not recievr push notifications from Facebook and YM. it’s all enabled in settings but still no notification. Is there something I’m missing or did I do something wrong??? Thanks for the reply BTW
I activated my phone with a friends AT&T sim, but I’m still unlocked with ultrasn0w. Would this be benifital for me?
did everything but battery is still draining way too fast