Although this article says he stayed in Egypt upon his prison release (about 1/2 through the article) source
Is this (Ahmad Abu El-Maati) the same El-Maati as Amer El-Maati who is one of the current "seven" BOLO? http://www.fbi.gov/terrorinfo/el-maati.htm and more info on him here http://www.trackingthethreat.com/db/ENT1711.htm
And, are you thinking he is the one posting as EOM?
You are the best researcher...yes it is one and the same and if there is a 'real' EOM , it would be him. Problem is with EOM is to know if the valid and genuine product is what he claims, then comparing his writings to the writings of El-Maati