close to permanent:

- Water Pavilion: http://www.evdh.net/water_pavilion/ 1997-2002

-Son-O-House: http://www.evdh.net/sonohouse/ 2004 and onwards

current long exhibitions:

- Spatial Sounds (100dB at 100km/h): http://www.evdh.net/spatial_sounds/ , September 22nd, 2011 - August 19th, 2012, Vranken Pommery, Reims, France. http://www.claudinecolin.com/fr/670-la-fabrique-sonore-experience-pommery-9 , http://www.pommery.com/

- Sound Modulated Light #3: http://www.evdh.net/sound_modulated_light/ , March 17th 2012 - January 6th, 2013, ZKM - Zentrum für Kunst und Medientechnologie, Karlsruhe, Germany. http://soundart.zkm.de/en , http://www.zkm.de/

http://julienbayle.net/blog/2011/06/big-max5-permanent-installation-buzine-marseille

but very soon, I'll describe it a bit better and in a real page (not a blog)

These are some things I've worked on which are controlled by Max and cosidered "permanent"

- 75,000 LEDs in a corporate cafeteria. Ran for the life of the office, about 5 years. This video shows some tests playing with the lights : https://vimeo.com/5768106

- This work at the University of Oslo is a permanent piece : http://www.thing.net/~vibekeie/IFI2trigger.htm

- These works by Leo Villareal are all controlled and authored with Jitter :

Tampa Mueum Exterior

http://www.villareal.net/project_7.html

https://vimeo.com/15263864

Nerman Museum of Art

https://vimeo.com/15237459

Brooklyn Academy of Music

http://www.villareal.net/project_5.html

Since summer 2005, in Neerpelt (B):

http://www.musica.be/en/houses-sound-2005-pierre-berthet

by Pierre Berthet (http://pierre.berthet.be)

Excellent thread! Really, this should be up on the cycling74 site - great promotional stuff, but also inspirational for us, the patching people

a few i have been involved with:

The Morning Line - http://www.york.ac.uk/music/mrc/projects/tml/

TBA21 Sound space - http://www.tba21.org/program/current/135/artworks2?category=current

Various Jana Winderen - http://www.janawinderen.com/2010/05/the_commissioned_permanent_sou.html

permanent outdoor soundinstallation in stockholm...

VATT by Ann Rosén

http://www.annrosen.se/?p=367

since 2010