The document discusses the growth of mobile phone usage from 1990 to 2005. It notes that in 2001, mobile phone infrastructure in the US achieved 98% completion and by 2002, service revenues covered 85% of infrastructure costs. Mobile phone subscribers grew from 14 million in 1990 to over 300 million globally by 2005, with the largest growth in Asia reaching 215 million subscribers. The author's favorite carrier is T-Mobile for its unlimited texting and nights/weekends plans and their favorite phone is the Blackberry Curve 8900.