swinewine, here's something you might want to consider for those not wanting to add funds first, then tip: create plugins for all web browsers that interacts with the bitcoin client and sends tip to the right address, thus when clicking "tipit", you actually tip immediately using the client.
Also, the whole deal with enforcing www.youtipit.org is quite annoying.
Ok thats an interesting idea but its a bit of a jump from our web based code. I see what you are getting at here, let us have a think about it. Also "youtipit.org" now resolves.