iPhone no longer recognised by Mac after running iPhone Configuration Utility

After running the iPhone Configuration Utility (for enterprise), my iPhone is no longer recognised by my Mac and doesn't even show as charging when plugged in.

The "Slide to unlock" text animation does reset when plugged into USB, but shows no other signs of connection on either the iPhone or Mac (iTunes doesn't do anything at all).

iTunes now also takes over a minute to launch and is shown as not responding in the Activity Monitor until it appears.

I'm pretty sure something major has been badly changed in my system files by a mess-up by the Configuration Utility: re-installing iTunes (without wiping anything beforehand) has no effect.

I'm *really* stuck as to what I can do and, even though I'm an iPhone developer, I'm not awesomely experienced with OS X system/iTunes config files to find out what's been changed.

Bottom-line: I actually have no clue what to do other than re-installing OS X (total last resort)

Anybody had the same sort of problem before? Thanks!