Where are my guitar virtuosos who can gimme their best guess as to how to create this effect?  It's kinda like a tremolo, stutter, random thing.  I've never really heard anything like it before and I think it sounds super cool.
 
The link is below, and it's on the guitar in the left channel...very obvious within the first few seconds of the song. 
 
Let the theories commence!  =)
 
http://youtu.be/UT0DIhYUeMY

Sounds like something that's easily done in iZotope's Stutter Edit, or (a way cheaper version) Melda Production's MRhythmizer. 
 
You could also theoretically do this in Guitar Rig by using a rack of step sequencers linked to a volume pedal. But it would be a pain to set up and automate. 

Something like Camel Space could do that pretty easily.

Sounds like it could also be a side-chained gate on the guitar track being triggered by a percussion track of some sort?

Can easily be done with Reaktor.

Low tech solution: run it through a bad cord and wiggle the connection.  That's what it sounds like. 

Sweet responses!!!  We obviously have a wicked knowledge base on here, too!  Thank you all!
 
Konrad - LOVE IT!  I'll try that out...

 
i found this one , however it's not the one that i had in mind. the one i saw before described how to do the "7-dust" guitar intro...   hope this helps.

Try playing with the Step Sequencer in the "Tools" of Guitar Rig.

mike_mccue
Try playing with the Step Sequencer in the "Tools" of Guitar Rig.

That's what I said as well - I think it's "kind of" doable but a little bit of a chore to set up. To get a changing stutter like the one in the song, you'd have to chain more than one step sequencer in the rack, set them up with different rhythms, link them to a volume pedal and turn each one off and on with automation. I did this in a song ages ago - I ended up with 6 step sequencers each with its own automation lane. It's a bit of a pain to manage. I wouldn't be surprised if there's an easier way to turn the sequencers on and off using some tool(s) in Guitar Rig but I haven't really investigated far.