<p>As the parent of three primary school-aged children, I am all too familiar with schoolyard squabbles. They can be loud, they're often a result of one kid overreacting, they escalate quickly and, more often than not, they leave everyone scratching their heads.</p><p>Source: T-Mobile</p><p>The very public spat between T-Mobile (TMUS) and BlackBerry (BBRY) reminds me an awful lot of these spats. It has now escalated beyond mud-flinging on blogs and Twitter (TWTR) with BlackBerry making a very real business decision, announcing it is ending its licensing agreement with T-Mobile.</p><p>When your company is in survival mode and desperately struggling to get its smartphones into the hands of customers, removing them as an option for the country's fourth-largest wireless carrier seems like a poor strategy no matter how angry you might be at it. This is the kind of disconnect from reality that has resulted in BlackBerry stock losing nearly 90% of its value over the past three years.</p><p><a href="http://investorplace.com/2014/04/t-mobile-blackberry-bbry-stock/">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.pcworld.com/article/2140160/tmobile-offers-credits-to-retain-blackberry-customers.html">T-Mobile offers credits to retain BlackBerry customers</a> (PCWorld)</p><p><a href="http://www.cnet.com/news/t-mobile-offers-100-credit-to-blackberry-users-for-upgrade/">T-Mobile offers $ 100 credit to BlackBerry users for upgrade</a> (CNET)</p><p><a href="http://techcrunch.com/2014/04/03/t-mobile-ceo-fires-back-after-losing-blackberry-sales-arrangement/">T-Mobile CEO Fires Back After Losing BlackBerry Sales Arrangement</a> (TechCrunch)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=d3dlftG_L3lIzdMFzDTuU6xA0KJ-M&authuser=0&ned=us">73 additional articles.</a></p>