Avenger...  Die 0 was addressed with the 0.98.1 beta firmware, and most machines were fixed with it. Other than you, I don't think there are more than a handfull more out there..MAYBE.   So to call that the "Biggest issue" is Total Crap.
okay we have...
1. Avenger  (Assuming he really has a machine)
2. Edgar....
3....?