Well just a couple notes here for you & others.
1) There are 3 different suppliers of the Uconnect sytem and they are not all the same. (unfortunately)
2) Configuration isn't the key here, the SW version is as well as the upgrade HW that is in the 2012 system and also the available memory for any more files (at least for the Mitsubishi radios <RES, REQ, RBZ & RHB>, these radios have an external Uconnect module).
3) The 2012 modules have enhancements added to them that the 2011 modules may not get, with that being said, there will be differences between a 2011 & 2012 Uconnect systems. Comparing the 2 systems to each other isn't oranges to oranges.
4) These Uconnect modules are the same in all 3 (Chrysler, Dodge & Jeep) and all use the same SW version per the particular built year and there are enhancements added year to year as with anything. The only difference being in the CAN BUS speed (High or Low speed).
I'm very "late to this party," as this thread is rather mature and (perhaps)has been nearly exhausted. I did, however, glance at a couple of responses and simply thought I'd add my personal IPod/430 experience.
In addition to my Challenger, I bought the wife a Jeep Sahara in April of this year. We ordered it, and opted for the 430 "MyGig" Nav unit.
Using the USB port, provided in the console, her IPod has worked (without any issue) perfectly with the 430 media center.
As Chrsler/Dodge/Jeep are all thought to be using similar, if not indentical, hardware/software and connectivity....I would assume that a similarly configured Challenger should also work without a "hitch."
Just my .02 cents !!
Gary aka beamg5