How come people aren't looking at this from the other angle: a twitter client could pre-preemptively look up URLs from url shortening services and annotate the

How come people aren't looking at this from the other angle: a twitter client could pre-preemptively look up URLs from url shortening services and annotate the tweets with the full URLs? For that matter, how about a twitter client with a memory? One that keeps dossiers on the people you follow? How about a twitter client that isn't written in AIR?