Even though the Novation Launchpad was designed to control a specific DAW - Ableton Live -, it can be configured to work as a generic MIDI controller. With Lauflicht Stepsequencer from Cie, you can use it as a plugin for Renoise - a multi platform DAW for Mac, Windows and Linux.
With version 3.0 you can link multiple Launchpads together to create a monster GUI.
The full version is $29
Features in V3.0
A modern classic that you will find in almost all high end studios
Martin shows of the new wares from Rebel Tech
Bert Smørenburg gives us his take on the new monster synth
Intelligent Master Processing and Multiband FET Compression