As we know that ayu love Hello Kitty very much!
And now there is a new ayupan
ayumi hamasaki×HelloKitty

And I think the A logo in CDL 06-07 will be used in ASIA TOUR 2007 too. Since it is printed on the mirror in the above ayumi hamasaki×HelloKitty goods. It is really a nice designed logo.
Source:
http://avexnet.or.jp/ayu/news/070309.html