Sometimes absence of evidence really is evidence of absence. Sometimes it's just that nobody was really looking that hard.

Their presentation makes a good case that real hackers really do just want to run their own code and that the 'piracy' bugaboo is something else entirely.

When I was little, I thought Sony was the coolest company ever. They made high-quality reasonably priced HiFi gear. Now my small children have made Sony the laughing stock of the household. Between this Linux debacle and the Windows rootkit, Sony has shown itself to have a habit of shooting its customers in the foot my opinion. No other company has fallen so low in my view.

Seems from watching the videos that they could go a long way on a future console to prevent hacks just by plugging these issues.

Naah. Every major security layer they had in place was broken or ineffective. That's usually a sign of deeper problems in the development process.

IBM probably wrote the hypervisor layer for them. IBM discontinued development on the Cell processor a few years back. It's likely nobody really understands that system at this point better than the hackers.