I know it's stupid, but the other alternative is calling it "HTML5&friends Game Engine", like the Mozilla guide suggests... Technically correct, but just as vague and now it sounds like a kid's show... I think we can easily agree this is not an improvement :)
The real name, which is "HTML5 + JavaScript + Canvas API + WebGL API + Web Audio API + Web Workers API + jQuery (for good measure, not actually used) + CSS3 Game Engine", doesn't fit on a t-shirt and, when put in a title tag, probably crashes older browsers and causes a Google employee to come and manually set your PageRank to -1.
The real name, which is "HTML5 + JavaScript + Canvas API + WebGL API + Web Audio API + Web Workers API + jQuery (for good measure, not actually used) + CSS3 Game Engine", doesn't fit on a t-shirt and, when put in a title tag, probably crashes older browsers and causes a Google employee to come and manually set your PageRank to -1.