Using WP Ajax Edit Comments 2.2.1.0 (just recently updated it) with WordPress 2.6.2 and it stopped working in the posts. Comments are still shown in "awaiting moderation" without any AJAX editing possible - but it seems to still work in the admin panel.
I also have commentluv 2.5.3 running (also recently updated) which produces a jQuery error ("g is undefined"), but that does not harm the way it works.
Maybe there is a connection?
Though, Ajax Edit Comments does not work when commentluv is disabled, either.
Do we have another jQuery problem here?