"Jeff Rosen of Wolfire Games recently made the case for indie
devs to embrace cross-platform gaming on his company's official
blog. Using the success of his own title, Lugaru, as a starting
point, Jeff asserts that creating cross-platform games can have a
huge affect on the way the market receives the title. Even though
OS X and Linux may have a smaller market share, Jeff argues, the
residual word-of-mouth sales generated by that smaller piece of the
pie can potentially facilitate a marked increase in total
sales.
""Obviously supporting Mac OS X and Linux means you tap into
another platform and expand your potential market base," wrote
Jeff. "That much is clear. But surely adding an extra five percent
is negligible, right? Wrong. Not all five percents are created
equal.""