Masa asked for it and here they are
Pre-order date: 2010/04/04 at AKB48 SHOP(s), 2010/04/11 on web and mobile
Price: 7350 yen per box
Contents: 10 Packs per box, 7 cards per pack
Total of 216 types; 162 regular cards, 54 rare cards
(Arena Live cards, clear cards, signed cards, instant camera cards)
Features all 48 members (16 per team), kenkyuusei not included
Bonus 1: 1 Special card per box with pre-order, randomly selected
Bonus 2: Poster with purchase of 3 boxes from AKB48 SHOP
http://www.pre-cam.jp/akb48/toreka/I wonder if these will become available at the regular shops... I don't think so, which is probably for the best