Pulsar II has its own "reality-buzz-you name it"
It is loaded with software synthesizer which are using the DSP power instead of your CPU (which makes them more hardware than software after all): a hundred of them. Also the MODULAR II is basically your BUZZ-reaktor but much better (sounds like a real synth). It has its own sampler too (STS4000), effects, inserts... Everything running in the same software interface, with unlimited routing of the signals.
The operating system
The modular II construction kit
The Big Mixer V2
It looks amazing, and doesn't sound bad at all... If your motherboard is a straight intel especially. Some may not need this, if they already love the sound of their synthesizer, sampler, and already have an ADAT card hooked to a digital mixer.
It is not for DJs though... that's more a studio tool.
This said... Do NOT get one of these cards if you have a motherboard with a VIA chipset (most athlons do). IT will result with conflicts.
Good concept though... I'll probably publish a review very soon.