The experience from Preview 1 is really disappointed. There are only 4(!) tools available on the toolbar: select, rectangle, rounded rectangle and text. So only thing I can do is draging the tools to the stage and making some changes to the object.
Now comes the so called big part. The animation part will be done with a timeline that is very similar to that in Adobe Flash. Define the starting and ending property value, the animation (between frames) will be generated automaticly. After doing that, we can take a preview in a browser directly without saving.
The source code of a html file looks like that:
<!--Adobe Edge Runtime-->
<link rel="stylesheet" href="Untitled-1_edge.css"/>
<!--Adobe Edge Runtime End-->
<div id="stage" class="symbol_stage">
That idea sounds good, because the user can use Adobe Edge as Adobe Flash. BUT, wait a second, the real world is very complicated. What about a property that is only deteminated by runtime or even by the related position to other objects? Adobe Edge seems cannot afford such kind of work at the moment.
Actually, Adobe Edge is somehow like Adobe Catalyst compared with Adobe Flash Builder. In Adobe Edge, the source code of a html file cannot be seen or edited. It is really like a tool for traditional Flash developers who begin to jump into the html world.
As fas as I said, there is still a long way for Adobe Edge to go to let the web developers accept the tool.