'typical price' is similar to 'median price' in that it takes the middle value between the extrema of the period (highest price, lowest price), only difference: 'typcial' throws in closing price as well, which is IMO pretty arbitrary, so median is usually more informative.
but, yeah, I noted it as well and made a post yesterday: we've surpassed the previous daily median price ATH, on mtgox and bitstamp. didn't check btc china, but I'll guess there as well

I still don't see how vwap aggregation (volume weighted average) doesn't beat pretty much anything else for pretty much every purpose.