The next release of yMIDI is now in public beta.
 
This version includes a new control surface that emulates the MCU Pro as well as many bug fixes and performance improvements.

yMIDI is a general purpose MIDI controller for controlling MIDI enabled software or hardware that supports the RTP MIDI protocol. yMIDI communicates with compatible devices over wireless or Ethernet. yMIDI works out of the box with computers running OSX and PC computers running rtpMIDI. yMIDI is a Windows 8.1 application and is fully touch enabled.

Purchase the current release version of yMIDI and get a free upgrade to the next version.

Features
• Standard Controls: Pitch, Mod, Volume, Pan
• 5 custom slider controls
• X/Y control
• 3 octave keyboard control
• 4x4 grid of touch enabled pads
• Custom sliders, X/Y control and pads are configurable to any CC and channel
• *NEW* Control surface with MCU Pro emulation
• *NEW* Toggle mode for touch pads - Visual indicator toggles between touch events.

yMIDI beta is available from the Windows Store
More information at Level 6 Productions
 
yMIDI Control Surface

 

Here's a short video demonstrating yMIDI beta and the control surface feature being used with Sonar X3.
 
https://www.youtube.com/watch?v=HUIelQ2nVfs

Any idea (roughly) how long this will be in beta?

The beta expires on 3/1/2015 but that can be extended, through an update, depending on feedback and discovered bugs. When the beta is over it will become the new version of yMIDI and folks who have purchased yMIDI prior to the end of the beta will get a free upgrade.