Yea, this was probably the biggest letdown for me (along with not announcing ANYTHING about 7.8). I was really hoping they would demo full work functionality with the new speech features, and either it's not ready until Windows Phone 8.5 (or whatever it will be) or they just scraped it.
Whatever the case, still very letdown by yesterday's announcement (or for a better word, lack there-of of one really since all the features shown were leaked and known)....