Targeting cross platform anything drives the cost up immediately.
Just building websites that work on different devices if the site is non-trivial i.e. SVG, WebGL etc the cost up because each platform you have to duplicate the QA phase. This week I spent 4 days tracking down an iOS bug in a WebForm. The company had to pay me 4 days worth of work, half of that was reproducing the bug reliably.
People make out this stuff is easy. It isn't and I am sorry but Linux users on Steam is like 1 or 2% the last time I checked. It just isn't worth the effort for most developers.
Just building websites that work on different devices if the site is non-trivial i.e. SVG, WebGL etc the cost up because each platform you have to duplicate the QA phase. This week I spent 4 days tracking down an iOS bug in a WebForm. The company had to pay me 4 days worth of work, half of that was reproducing the bug reliably.
People make out this stuff is easy. It isn't and I am sorry but Linux users on Steam is like 1 or 2% the last time I checked. It just isn't worth the effort for most developers.