If only this was 5 years ago
The performance there talking about for the $2k board is purchasable via a GPU for around the $150 mark. As for power usage, I'd probably say the ATI/Nvidia high end mobile chips would beat them for performance and power usage, probably some of the desktop cards as well.
Shame realy as the DSP was for many the next logical step after the FPU go intergrated into the CPU and sadly since then the DSP hasn't made enough wide interest dent in usage to blip on any radar of mass adoption. They have done wonders in many niche area's and I'm deeply supprised they have not been adapted more as processing add on's. Alas, beyond video editing and games and highend math stuff the end home user has ended up driving the graphics cards into a market the DSP's should of had nailed before day 1 even existed. Now there releasing products akin to 5 years ago power wise on the GPU front, ok better power usage then 5 years ago but still not enough wow to spark mass interest I'd say. Had they said sub 50w power usage then that would be noteworthy, but still not jumping out at me.
I'm not afay with the tools available to accomodate multiple DSP programming without limits on how many but all a programmer wants to do is code the the problem and to avoid any distractions about architecture as much as possible. That is there ideal world, the compiler should target the end platform for them and identifiy and parralize(sic) there code for the platform it is running upon. The other end is to manualy code at assembler level every last juice of power out of the configuration - everything else is a balance of compromises. Like having to not only work on the problem in the code but also the platform and its various nuances like process handerling. Which distracts from the problem being addressed by this compute power. Nothing is perfect in that balance but it's only getting better, one day you can focus just on the problem and allow the compilers etc to deal with the nuances for you.
I also remember back in the days when the Atari Falcon was anoounced; It had a DSP built in - sadly DSP's on your base mother board never realy took of from there and the PC standard, whilst accomodating via PCI etc for DSP's never realy mandated them. Unlike graphics cards which were kind of needed for a PC and it is from there we ended up in the situation we are today were graphics cards have in many ways become the mass consumer usage decive that pushed addon processing power the DSP market have for many years been craving.
Sadly I think it is too little too late for DSP's, at least how there projecting currently. With some intergrating with FPGA's as well then they may break a few more niche's.
Also if they can automate the ability to leverage that parrelalism of the architecture the DSP offers then they may still do it. Maybe a customer DSP thats tailored towards the rendering market, even focused on that. That is always open to cheaper more powerful and less heat producing solutions and is a large growing market that has potentual to open up towards home users one day. Otherwise most people are just looking for cluster FPU's basicly :\ and this does not compete.