Getting my site to work on mobile is so low priority it's not even funny. I get how many mobile devices are used today, but there are often bigger fish to fry, often with limited team resources.
That's the attitude I'm targeting. Drop in five lines of code and use a different stylesheet for mobile. Easy and no danger of making it worse (since they can switch back).
I'm not really going after anything built by a team though. I'm mostly thinking of this as a solution for blogs or maybe the pre-login section of a site. Usually once you're inside a web app, things get more complicated than you can deal with with the simplicity of stylesheet A vs. B.
