No info about availability.
The E950 is a 10hp DSP-based VCO that combines the famous "smooth morphing" of the E350 Morphing Terrarium with fully licensed "Speak & Spell" technology from Texas Instruments.
The E950 has 4 banks of speech ROM data, which is provided by Texas Instruments under an exclusive license agreement. The E950 then applies proprietary "bending" algorithms to behave exactly as a standard "bent" Speak & Spell and then extends them to real-time modulation of the internal lattice filter coefficients, something that cannot be done normally.