Enterprise applications are the path for developers to start making money, according to an increasing number of industry experts. Yet that's easier said than done for developers who have never worked with big businesses before, as just getting a foot in the door might be a considerable challenge. Small- and medium-sized businesses (SMBs), on the other hand, may be a lot more approachable and more willing to work with indie developers who have a proven portfolio of consumer apps. There's also evidence that a growing number of them are eager to make mobile apps a part of their customer experience, too. A recent study from Washington, D.C.-based Clutch, which researches and reviews mobile apps for business clients, released the results of a survey that suggests the number of SMB mobile apps will double over the next year. For more on how developers can tackle the SMB market, check out this FierceDeveloper special report.