The
Nobunaga! secret project turned out to be a Drama CD adaptation (wow such a secret project >_> we didn't need to wait till October 26th):
http://blog.yag-tokyo.chu.jp/?eid=171
Guh, at least I hope the "Dengeki Bunko Autumn Festival 2010" will not pass without any anime adaptation announcement of at least one Dengeki Bunko light novel series >_<