Mobile applications have huge market potential. The document discusses opportunities in the mobile application market, particularly in emerging markets. It notes that mobile is ubiquitous, personal, and always with users. It identifies healthcare, education, commerce, and government as domains with large untapped markets for "utility VAS" or useful mobile applications. These domains involve important, recurring needs. The document recommends focusing on use cases where mobile can significantly improve outcomes by making processes faster, better or cheaper. It provides tips for success such as understanding user segments, domains, and the mobile usage paradigm. Emerging markets are seen as prime opportunities due to market needs and tailwinds in the mobile ecosystem.