I would like to thank you twice, but there is no such option available

Really, this whole party here need more people like you. With solid experience and not dinosaur habit like most of old-school guys unfortunately have. And I bet you are this kind of person that prefer to try something before give some opinion.

I'm trying to get some info from flash community as well but for now I can only confirm your assumptions. Maemo is sinking Flash 10.1 too, only because of marketing decisions. The only hope is while n900 is good device itself somebody find a way how to put some useful stuff here.

For now situation looks like we end up with outdated Flash 9 and when flash 10.1 will show up the only thing we can see it's blank screen. iPhone users are in better positions because they have some cool blue lego instead

Only one thing I can't really get is leaked PR 1.2 has new flash 9 version to compare to 1.1.1 and also I founded .so files of it. They had to play around it intentionally... for now I see LOWER performance of Flash. If this is true they will even kill us more with 1.2...

Edit:
Yeap

Previously my performance monitor in Flaemo showed me 24fps when sliding desktop slowed down (in worst case scenario) to 19.

Now 9... In this case I can even personally recommend you forget about Flaemo on your N900

They treating us like idiots really...