Just realised I haven't posted this up yet:
1. GAME☆ACTION OHP updated with info on the artist goods
here. It's some insanely long list, so I won't translate it unless anyone's interested (same goes for the
event schedule). There are limited amounts of the goods, like signed Ayabie photos and stuff, so if anyone's in Japan during that time, maybe you should consider going for the event. :x
2. If you've bought any edition of Natsumonogatari and also ordered "the 7th color" live DVD, you'll find that there are passwords included inside (unless you've thrown away the fliers inside...).
I think this is probably a Japan-only offer, but for anyone who's interested: Keep those passwords, because you can use them to redeem a bonus DVD with live footage not included in the live DVD. You'll have to pay for postage and handling charges yourself; the bonus DVD itself is free. Details are on the Tokuma site
here, I can translate it for anyone who needs it.