Mockingbird is a cool new online tool for mocking up websites. Even better, it's written in pure HTML/JS, no flash to be found. Very sexy tool!
LOL. Except it doesn't work in IE.
"We currently do not support Internet Explorer."
Lame!
I think you mean "encouraging web standards" :) Probably uses hardcore JS and CSS / HTML5 stuff that IE doesn't support yet. Works fine in other modern browsers on major OSs (firefox/chrome/sarari on mac/linux/win). IE8 still fails miserably on the Acid 3 test it seems.