Hello, I think Edge is Flash.....10 years ago.
But still is a very interesting tool.
Today, Flash is less used for web development but more in the videogame industry. To see Flash content, you need the Flash player but you do not have it on Apple mobile devices.
Edge is mobile-friendly and generate html5 content as default that can be viewed on every mobile support.
Edge is still evolving, it will include more and more possibilities in the future. now we just have to wait for updates
p.s: you can export html5 content from Flash too, it uses the Canvas technology. See how to export html5 from Flash online - http://tv.adobe.com/watch/adobe-technology-sneaks-2012/export-to-html5-from-flash-professi onal/