Complex sentence: Small-scale touch devices rapidly became commonplace: in 2008, the number of touch screen telephones was expected to increase from 200,000 shipped in 2006 to 21 million in 2012.
Split into simpler sentences: Small-scale touch devices rapidly became commonplace in 2008. The number of touch screen telephones was expected to increase from 200,000 shipped in 2006 to 21 million in 2012.