Well, flash (you mean adobe flash I suppose). Another one I don't care about. That's 3rd party app, not even officially compatible with armv6. I know that hacked versions work on GB roms but I am not going to put any effort to make them work on 4.x roms. Waste of time for me.
If you mean camera flash. I don't knoe of any 4.x ROM that has led flash working.
Regarding FM on cm10.1. Strange they can't get it to work since I ported it from CM10.1 sources to all of my non-CM 4.2 roms
They simply must be missing some essential parts of it, I suppose.
Not too hard to look into my ParanoidZTE git - pa-cm-10.1 branch. All of my commits regarding FM are there.
My Slim related source branch is not there yet. It will be published tomorrow after I clean it a bit.
Edited by C3C0, 17 March 2013 - 10:21 PM.