These prototypes illustrate the potential for mash-ups if xmlhttprequest was not limited to a single domain.
Each prototype has been developed in under 2 hours and is intended as a demonstration (so please forgive the bugs).
Explore the challenges and lessons learned developing the Windows Live and Gadgets Web client frameworks powering Windows Live, Hotmail (Kahuna beta), Spaces, and more. This technical talk presents design and architectural considerations for building interactive AJAX-like sites. See how componentization, network management, accessibility, page composition, and more impact the design and engineering of your Web application.