In 2011, GBC worked with HTC, the Taiwan-based mobile device manufacturer, to create and launch their app developer support initiative, HTCdev. In Fall 2011, GBC launched the first version of HTCdev.com. The new website, complete with HTC's first Software Developer Kit (SDK) and other app development support resources, was a huge success logging two million unique visitors in 6 months across 200 countries. In February 2012, HTCdev called on GBC to support their participation at Mobile World Congress (Barcelona), including the design of a Keynote presentation that was to be projected on a nearly 60-foot wide screen. The presentation included the announcement of the updated SDK as well as their new line-up of 3 phones under the HTC One banner. The event was a solid win for Team HTCdev. Note the line of people extending around the building waiting to see the HTCdev presentation.