So, I am using 3.3 Beta 2 with Flash Builder 4.6 on Mac - and it works.
I do not use the swf-version compiler flag - I adapt the config files in framework (just search for <target-player> and <swf-version> in frameworks config files)
Did you really download the current playerglobal from here: http://labsdownload.adobe.com/pub/labs/flashplatformruntimes/flashplayer11-3/flashplayer11 -3_p2_playerglobal_041812.swc? This maybe even a cause of the problem...
I am trying to get 3.3 Beta 2 with Flash Builder 4.6 on Windows 7 x64bit to work. But still no luck.
I have Flash Builder 4.6 on Win7 to work no problem.
I have updated the playerglobal.swc to 11.3 using http://labsdownload.adobe.com/pub/labs/flashplatformruntimes/flashplay er11-3/flashplayer11-3_p2_playerglobal_041812.swc
but still run into the same problem below:
I can't go through the steps to create a new Flex Mobile Project because of the following error "Air 3.3 Beta does not support mobile projects".
However, I have no problem creating a Flex Project (Web & AIR) and ActionScript Mobile Project.