Grampy - and what are the numbers then for the other issues? I noticed you didn't even bother quantifying it. Of course I doubt you could, since you have no idea like anyone else. For all we know, E74, ORR, NXE, and NXE Audio patch put it at a 3-5% composite, as I've rarely heard of 360's being returned for any of those issues.
As for RRoD: The simple fact is that the Falcon chipset, released in October 2007 fixed the vast majority of overheating issues. The Jasper chipset, released October 2008 improved the reliability even further. As far as I've read, Jaspers are the most reliable 360's yet, and face very few system-breaking issues.
If you want the low down on how much more reliable systems are, check the NeoGAF aggregate of system breakdowns. Very few have broken down that are Falcons or Jaspers.
Back from the dead, I'm afraid.
