Macromedia Flex & Laszlo Systems

Macromedia made availbale more information about its upcoming product "Macromedia Flex" (code name Royale).
After going through presentation on MM Flex and a whitepaper, i can see the similarties between Flex and another presentation server called "Laszlo Systems".
Both of these work on XML based markup languages for content generation, both of these target RIAs market.
Comparing both products at this early stage won't be fair. I am Waiting for trial version of Flex or Beta testing invitation from MM, then i would be in better position to say more on Flex.
I have already used Laszlo Systems and found it good. Flex seems better than Laszlo Systems in many ways.
Things would be clear soon...