I've spent the best part of four hours playing around with PJ64 & 1964 today trying out some games I never got the opportunity to play (trying them all out with Rice's plugin's as if they won't work with that on the pc then forget it working on the xbox version) and I've found a hell of a lot of games do work ok with the plugin but you have to play around with the settings. I hope that we'll have (some) ability to change the plugin settings so we can tune the games ourselves.
Having said that if it plays pilotwings better than .70 I'll be happy (And the very fact I'm playing pilotwings at all on my xbox makes me pretty happy).
We all wait with baited breath, maybe tommorow, maybe next week, maybe next year one things for sure this is going to be to keep a quiet eye on.