>>I took a quick look at the relevant jquery function. There is quite a bit of code in there - but it catches possibly obscure things which you'd have to do every time you used GetElementById(). For example:

					// Check parentNode to catch when Blackberry 4.6 returns
>>					// nodes that are no longer in the document #6963
>>					if ( elem && elem.parentNode ) {
>>						// Inject the element directly into the jQuery object
>>						this.length = 1;
>>						this[0] = elem;
>>					}

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>Yeah, Since my apps don't work if the browser doesn't support Web Audio API, I have the luxury of designing for HTML5 only and thus the vast majority of browser quirks are none of my concern :-).

>My heart goes out to web designers that have to support Internet Explorer

Hmm. I'm also working on a 'HTML5 only' site at the moment (needs GeoLocation) but I'm not going to assume that there are no quirks on some browsers.
And are you saying your not going to support IE when it gets Web Audio API - IE9,10 & 11 combined have ~30% of the market ?