With all the doom and gloom news about the economy, many are predicting that 2009 will NOT be a good year for mobile advertising.  However, in a recent article in MediaPost's Online Media Daily, I make the case that it is not time to hunker down -- but rather double down when it comes to mobile advertising.  Mobile is ubiquitous, uncluttered, direct-response oriented, measurable, and effective.  You don't have to be a gambler to see the advantages here.   Not convinced? Read the full article and leave your comments here or over at Mediapost.com.  I want to hear about your mobile advertising outlook for 2009.  Will you hunker down or double down?