This is news from AES:

"Receptor™ is a 2U rack-mountable multi-timbral sound and effects module that runs standard VST instruments and effects. It combines the power of a computer with the ease-of-use, portability and reliability of dedicated synth and effects hardware."

"Receptor's intuitive, mixer-like architecture combines up to 16 different audio sources, which can be either internal VSTi instruments or external analog/digital inputs. Each source is then routed through its own inline effects matrix that allows three VST plugins to be configured in every possible parallel/series arrangement. From there, each source is sent to a dedicated mixer channel, where the sound can be further processed by sending it to two dedicated effects busses, each with another fully configurable VST effects matrix. Need more processing? There is yet another VST effects matrix on the master output, for mastering and sweetening effects."

They have small website -- http://www.museresearch.com/ with several pictures and very limited info. But they mentioned museLINUX in their's device architecture.

We will be waiting. It is definitely not arranger, but a good companion to arranger at gigs. It is VSTi and VST effects in rack, not in computer. Very convinient in stage setup.