Esther Schindler at the Linux Foundation Developer Network offers some insightful analysis on developer career choices -- is it easier to find employment and make a living working in a proprietary or open source development environment?
Schindler explains that while gathering data on the number of available jobs in these fields is challenging (and determining the number of qualified candidates competing for them is moreso), looking closely at job search sites, recruiter information, and career statistics indicate that a career in open source development can be even more lucrative than one in a proprietary setting.