Atlasthome,
Whether or not there is a prayer hall (of course there will be) isn't the issue. The scared folks who've watched too much Fox news are terrified that these folks are going to use their community meeting rooms to plan attacks on innocent Americans.
To answer your question, however, a mosque prayer hall is open to anyone at all so long as they observe proper Islamic etiquette, i.e., women covering their hair and dressed modestly and men observing the Islamic dress code for their gender. In fact, I'm sure anyone would be welcomed and given a free Quran for their visit :-).
Did you know that travelers in other countries stop overnight in mosques sometimes. Nobody asks if they are Muslim. People even stop in to have an afternoon nap on the carpets without raising an eye brow.
Sad fact is that our media has inundated us with a lot of B.S. about one of the world's major religions -- made these folks out to be terrorists and Al Qada sympathizers. How soon we forget about the Christian Crusades and the Inquisition and the persecution of the Jews of Europe, of course.
It's unlikely that we shall have the whole and accurate story of what happened on 911 in any of our lifetimes.
Take away the constitutional rights of one faction of people in America and rest assured that there's no going to be a lot of empathy for the rights demanded by gay people.
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