Actually, N9 will support flash. I watched latest teaser video (24/28) in Finnish N9 campaign (ensikosketus.nokia.fi) where they said that browser experience will be excellent including flash and html5 support.
Wholy cow! Pity that video 23/28 included missinformation about processor: they arguedt that N9 has dualcore processor so I cannot trust ensikosketus.nokia.fi campagin anymore. But hey! Let's hope that flash will be supported in browser!