If you haven't read about Dave Smith's excellent Evolver Synthesizer, you should - well in fact you can - I reviewed personally and found it's sonic mayhem my cup-o-tea. You can read-all-about-it here
So, now Dave Smith has updated the OS to version 2.0. It is already installed on all Evolvers starting with serial number 01095. It can be loaded into any Evolver with two MIDI sysex dumps. All you need to do is squirt the relevant SYSEX files into it (downloadable from http://davesmithinstruments.com)
New features include: The addition of Bank 4, for a total of 512 Programs. New modulation destinations, including individual Left and Right Filter Cutoff and Resonance, Envelope Decay and Release, and Distortion. Synchronous Program changing while the Sequencer is running. New Sequence modulation destinations, including Clock speed, MIDI note transmission, and MIDI controller transmission. A new Sequencer clock mode that allows each MIDI note to advance the Sequencer one step. A Split signal mode that allows one mono audio input to be controlled by a second mono control signal. Tap Tempo. MIDI input indicator (decimal point). Six new Delay syncs. Longer Envelope rates. New Glide mode that only glides when more than one key is held. New Trigger mode that plays a sequence a single time on each MIDI note.
Get yours here: http://davesmithinstruments.com