Here's one thing about the difference between analog and digital. For analog to sound right and provide the interaction you want, you still need fairly macro-scale semiconductors to throw around real electrons. Those things, and the knobs and sliders to control them in real time, have a cost that doesn't fall beneath a certain floor. You can get prices fairly low if you're in a position to apply economies of scale, such as Behringer is doing with their democratizing and divisive Minimoog clone.
In the digital domain, things are even more democratized. A contemporary smartphone or tablet has more than enough processing power and storage to do what the most coveted and expensive digital synths of the 1980s did -- and all you need do is download an app for the change you might just find in your couch cushions. As opposed to the thousands of dollars it might have cost you to pick up a PPG with a WaveTerm, the tens of thousands for a Fairlight, or possibly hundreds of thousands for a full-spec Synclavier. It's still all ones and zeros, so if your conversion and clocking are solid, it's going to sound good. Better than back in the day, likely.
This is why the new INFINITE iPad app from Wolfgang Palm -- inventor of the PPG Wave synthesizer and wavetable synthesis in general -- looks like such a big deal. We know relatively little about it at this time, but it seems to be the culmination of every sound design philosophy Palm has stood for over the years: Rhythm-synced stepping or morphing through wavetables, numerous methods of wave-shaping, surgical spectral control over even the noise source, and much more.
It's likely that, like Palm's previous software synths, Infinite will be available in a VST and/or AU plug-in format for your central desktop studio computer, but the touchscreen element of the user interface makes a particular case for running it on an Apple iPad. (My fourth-generation iPad lives on a Novation iTrack Dock and does nothing but act as a soft synth platform in its own right. Just picked up the 10.5" Pro too, so we'll see how it does on both.)
We're in touch with Mr. Palm about a full review as soon as he's ready. In the meantime, here's the teaser video, which contains a lot of '80s-inspired, morphing, crystalline, sparkling glory. I will pay extra if there's a drop-down "Mode" menu with a selection called "Depeche."