well..let me try to explain again how our Linux OS 4.0 is working under the hardware system.
The first step here is to understand the new way how to run multiple ASIO host instead to run VSTi in one host, like the most windows OS system.
How you already know, the Linux with Jack connection Kit, is able to running up unlimited ASIO stand alone application and also IF you want, to run UP VSTi plugins by the FST
( FST is one linux application that open the VSTi interface, create automatically the audio ports and midi ports)
In this way you dont need to use one VstHost server.
here the example: http://www.lionstracs.com/store/images/komplete/jackasio.jpeg
This are all basic Linux features that normally must be running manually by the Terminal/Console. ( not simple if you are not a linux developer...)
One example konsole command for open one asio host.
Open a terminal and you get: root@mediastation:/home/mediastation#
now you type:
wine /home/mediastation/VST Plugins/NI/B4II/B4II.exe , then press enter, the Organ B4II ASIO host interface will running up by the wine/windows emulator.

On the mediastation/groove products we have embedded this all terminal command on 10 available ASIO patch button.
So, when you press for example the ASIO Patch 3, automatically we running the Terminal script for loading the desidered .exe file with Wine.
The script will also create the all audio and midi connection routing on the Jack system.
Of course under the ASIO Patch editor you must first setup wich file.exe to run up: http://www.lionstracs.com/demo/MSgui/asiopatchdemo.jpg

BUT, before running one asio patch, the ASIO host stand alone application must be first installed and setup the audio-midi ports, here one example: http://www.youtube.com/watch?v=myN6DlvKcc8

At the end: IF you will have ready on the 10 ASIO patch button/keys, you have first to setup 10 ASIO host.
Each ASIO host must be setting the midi port number as same as the ASIO Patch number.
When you have made this first basic setups, then the OS 4.0 will run all automatically by pressing one key patch.
Already out of the box are installed/setups some multiple asio host and you are also able to ADD more new ASIO/VST stuff.
Untill you don't have understand this new concept, you will be never able to make working a new asio /vst host.
Other this basic feature, on OS 4.0 we have 8 basic slider midi CC controller and when you press the key MIXER, you get another 36 sliders midi controllers: http://www.lionstracs.com/store/images/2008/MS/midicontroller.jpg


On Wersi is totally different, they have 4 VSTi Slot available, where you can choose from the list the desidered VSTi and play it, but I dont know how much sliders midi CC controller they offer for the realtime control.

On Openlabs is totally again diffferent.
How told Abacus, this is only a PC system asembled in one Keyboard case + some standard midi controllers.
You can run the Reaper and then mapping the midi controlles available, but you still remain ONLY on the Reaper DAW application
When you use the Forte for manage the sounds, the Reaper can not control play together..only one app at once.
All the setups there you must make manually..they dont offer any embedded software like the Wersi or Lionstracs.