I've been meaning to look into Junoon. I heard that Salman Ahmad gave Basim Usmani from the Taqwacore band 'The Kominas' his guitar (or maybe that was just in Michael Muhammad Knight's book 'Osama Van Halen'...
I could never get past the fact that Salman is related to two of the most vapid women in Muslim America. I know it's not his fault, but then again, no one forced him to do isufirock.com with them (and bonus, their equally vapid son / brother). But LOLz you have to love "Sufi leaders" who are among GW Bush's biggest financial supporters.
But to bring this back around to the Kominas and MMK, Salman's cousin Asma Gull Hasan tried to sue them b/c the Kominas wrote a dirty little song about her and she was so sure that MMK put them up to it (and in one of his books, he wrote some nasty passage about her as well).
http://www.denverpost.com/newsheadlines/ci_7262553 Personally I dislike any religious or "spiritual" rock music or hiphop at all whether it's Christian or Muslim or whatever. It usually ends up sounding very corny and forced. Even Matisyahu had one good song and the rest of it was meh.