More than 150 marketers -- 100 agencies -- were among those to share their experience and impressions of mobile marketing so far, and to forecast their Q4 spending in the medium. How does your agency or brand stack up? Thanks to Millennial Media, we've been able to provide you with this excerpt. If you'd like the full report, you'll need to join us at DM2PRO.com (just $19.95/month).