In an email to customers, hardware upgrade company Sonnet has announced yet another shipment delay for its Echo 15 and Echo 15 Pro+ Thunderbolt docking stations. Unveiled in April 2013, the hardware is still in the pre-order stage. The latest delay is the result of a company decision to upgrade the device to support Thunderbolt 2.0. Following our last Echo 15 and Echo 15 Pro+ Thunderbolt Dock status update, we received very positive feedback and valuable input that confirms these products were designed with the right feature sets. However, there has been an i
