No real reason. One man developer (who's on vacation right now), and we were heads down getting this to work on Chrome for a little under a month so he could make his vacation on time. :)

There were a few things that were working in Chrome only when this was coded. For example, Opera stable didn't have WebGL support at the time. But, in general it works great on Firefox too. When my colleague is back from vacation, we'll get it working on all the browsers (except IE, since there's no WebGL support there). Thanks for the comments too!