MoSoLo is not a new neighborhood in Manhattan but rather an acronym for the dynamic combination of mobile, social and location-based applications. Unfortunately, with FourSquare's growth out of the headlines, this trend also could be dismissed as a fad and marketers might be tempted to throw the mobile social baby out with the location-based bathwater. Bad idea. Over 50% of shoppers consulted their mobile devices while at retail this past December; therefore, having a multi-tiered mobile strategy is essential for just about any brand. If your website isn't mobile friendly, fix that. Next, think about apps that deliver genuine value, integrate social and capitalize on mobile functionality like barcode scanning, GPS and voice.