AOD have listed US release details for
Simoun V1 - confirming the earlier announcment, it's six episodes (150 minutes), sub-only, and due out 2007-11-13. New info is the US$19.95 RRP, and that it's rated "16 up" (I'm not really clear on their rating system - is that some sort of official age restriction, or just the distributor's recommendation?).
EDIT: According to
RightStuf, MB have chosen to translate コール as "Choir".