The only reason I use Adobe AIR is for the Twitter application Twhirl. However, I noticed the Hebrew text was incorrectly displayed (word order was reversed).
I did not find a solution for this online and the guys at Twhirl didn’t know what to make of this.
After toying with a few of the options, I finally found the answer – the fonts used by Twhirl were in Hebrew, but AIR wasn’t playing nicely with them. I switched from Calibri to Tahoma and found that the text was just fine.