@Daid_Braam OK, I guess PVA might put me at a disadvantage, I don’t know what that takes. I have put a thermocouple on an E3D v6. Same hot end did PLA and also makes parts in a plastic that needs 320˚C extrusion.
@Florian_Horsch_flouS Do you have a reliable way of sensing a material’s properties in-line? It seems like too many hopes are being placed on a somewhat fantastical and complicated device that by the time it’s ironed out, the FFF process might well be obsolete.
@Nick_Parker thanks for the hint. I REALLY like the idea. Should work the same way in German/EU patent law.
@Jeff_DeMaagd I would really like to get @Kai_Parthy into this discussion, but I don’t think he’s too active on Google+. I’m not the inventor, I’m just the tech journalist in this case 
But still: I don’t think that FDM/FFF will get obsolete anytime soon. It’s a valid and cheap way to extrude so many fantastic plastics. There’s a real value in it - also for businesses. Just today a German venture announced their specialised FDM printer for printing PEEK (http://www.3d-drucken.de/2015/06/indmatec-bringt-3d-fdm-drucker-fuer-hochleistungspolymere-auf-den-markt/). This alone is of huge relevance for plenty of industries…
Not the first people to print PEEK. Honestly, the only technical challenges to printing PEEK are hot blocks good for 400C (eg an alloy with less temp de-rating than typical aluminum) and a heated build chamber that can go hot enough to adequately reduce warping but doesn’t violate Stratasys patents. The hot block is trivial… It’s really just the Stratasys HBC patent that makes PEEK hard to print.