PhysX technology has cooled a bit in terms of sheer popularity. That said, we've no doubt that the buzz will be back in force after this one clears the airwaves. NVIDIA has just announced that it has nailed down a tools and middleware license agreement for Sony's PlayStation 3, effectively bringing the aforesaid physics tech to what's arguably the most potent game console on the market today. As a result of the deal, a PhysX software development kit (SDK) is now available to registered PS3 developers as a free download for use on the SCEI Developer Network. What exactly this means for future PS3 games remains to be seen, but one's things for sure: it's only up from here.