The project is hosted here: http://midi2lr.mathieu.photography/

It contains configuration files to be able to control Lightroom from your Tablet, Phone, or a MIDI Controller like the Midi Fighter Twister or TouchOSC.

Some other help:

1. Here is a good article (in French) on how to configure Lightroom with TouchOSC and MIDI2LR:

http://www.slashbiensur.com/configurer-touchosc-et-midi2lr-pour-controler-lightroom/

2. Here is a good article (in French) on how to create a TouchOSC UI for your device:

http://www.slashbiensur.com/controler-photoshop-lightroom-avec-son-ipad-iphone-ou-android/