Interesting:

Sounds like this http://drownedinsound.com/community/boards/music/4210623 has finally come to pass. Note that there will be a UK equivalent next summer, presumably in addition to the spring ATP.

ALL TOMORROW'S PARTIES CONFIRM FIRST JAPANESE EVENT
"I'LL BE YOUR MIRROR"
LINE-UP & TICKETS AVAILABLE SOON

PRESS RELEASE DATED 25TH OCTOBER 2010:

On Sunday 27th February 2011, All Tomorrow's Parties will collaborate with Japan's Creativeman to present their first Japanese event. Named after the b-side to The Velvet Underground's original All Tomorrow's Parties 7" single, the one day I'll Be Your Mirror event will take place at Studio Coast, Tokyo, Japan.

Acting as sister events to the ATP Festivals which usually take place in holiday resorts, I'll Be Your Mirror will be a new series of curated events taking place in cities worldwide. For this first event ATP will curate with a stunning line-up of artists to be announced soon when tickets go on sale. The intimate event will feature music, DJs, and art from James Jarvis of Amos Toys.

ATP promoter Barry Hogan: "We feel really excited that we are finally coming to Tokyo to present some of our favourite Japanese and International artists. It's been something we've wanted to do for many years and this first edition of I'll Be Your Mirror will be a sample of future projects we plan to bring to Japan."

Following Tokyo, the next I'll Be Your Mirror will be an artist curated event taking place in the UK in Summer 2011.

For any I'll Be Your Mirror Tokyo press or event enquiries please contact: Yoshinari Hirayama: hirayama AT creativeman.co.jp or Riki Domen: rikidomen AT me.com
www.twitter.com/ATPIBYM