Sorry, I'm relatively new and excited, and the ideas are flowing...
I was thinking about how a lot of people have their bitcoin address posted on the web as a piece of text and it made me think of the "mailto" links that are available in HTML.
<a href="mailto:email@example.com?subject=hello">Email me!</a>
Imagine if we could get Chrome (go Google!) or other browsers to accept the following as a valid link and launch your bitcoin client:
<a href="payto:12HbhjqzxNNLjTVbEPkhzcPHLzXdN9sD8b?amount=0.01">Pay me!</a>
(Then of course you should hit a confirm button once your client presents the send window).
What would be involved in making this happen?