Remember Networds from 1998? See
http://www.geocities.com/netnetworkers/netword.html
I want one of these URL short-cut systems to work, I really do, and I'm a huge fan of this type of creative solution. There have been numerous attempts at similar services. The challenges are many, from adoption of the method by a user base, to avoiding the inevitable with trademarks/tradenames and the soon to arrive QuestKey spammers. One has to ask, if the shortcut URL model makes sense, isn't it likely to be rolled out by someone with a critical mass of users already, like Google? The standalone shortcut URL model, IMO, would be best suited to really vertical markets, and/or BtoB implimentations.