If they're going to answer user questions, they probably need to be running it: AppleCare support representatives have been issued redemption codes to download OS X Mountain Lion, according to a report on 9to5Mac tonight.
This amplifies the anticipation for the new OS release, which many suspect could show up by midweek. In 2011, the release of OS X Lion followed on the heels of Apple's quarterly earnings call by one day; the Q3 FY2012 call will be Tuesday July 24th at 2pm PT.
The build number on the version of Mountain Lion that the support reps are downloading is reportedly 12A269, which matches the developer GM build.
Keep up with all TUAW's Mountain Lion coverage here.