> Still the two programs show the power of things to come. And the OS > manufactorer moving towards a better model in the near future, suddenly it > will be possible to operate these programs in realtime.
Quite, and I look forward to that time. Software-based solutions are the future, but they are still in their infancy. One of WaveCraft's customers described his synthesiser and effects processing hardware as "dinosaurs already fossilised in their inflexibility", or words to that effect, and looked forward to the day when it could all be done from easily upgradably, and low-cost, software. He considered WaveCraft to be the start of that revolution, certainly for the popular market, and these newer products like Rebirth continue that tradition in their own, philosophically slightly different, way.
With products such as Rebirth, however, it is not just OS deficiencies which hamper them at the moment, but also the fact that they require a huge amount of CPU power to do their stuff, though I understand the latest version of Rebirth now 'only' requires a P133. I would be very interested - indeed amazed - to see it running alongside an audio-based sequencer on anything less than a multi-processor Pentium Pro system. WaveCraft, and others like it, through not claiming to be real-time, are actually far more useful in serious computer music production; they use the sound-card wavetable memory to take the strain off the CPU when actually playing back the sounds, such that one can play highly multitimbral WaveCraft music, at a 44.1kHz 16-bit sample resolution, on a mere 486SX.