The original Kiddy Grade site has been updated (for the first time since 2004, apart from the pulling of the BBS) with a new page detailing the boxes. There's nothing new to see there, but the the product pages on chara-ani (below) make note that the movies did very well, especially for a late night weekend showing, and that the K-G.2 pilot DVD sold 8000 copies.
http://www.chara-ani.com/details.asp?prdid=K22803002
http://www.chara-ani.com/details.asp?prdid=K22803003