1. Initially there were more than that missing, currently it is only affecting zimbra_samba & zimbra_posixaccount
2. Most zimlets were deployed on the commandline via zmzimletctl but I did try through the admin console a couple of times.
3. Correct though I have now discovered errors that are not being presented in the zimbra logs by using firebug and IE8's profiler.
In firebug I see error:
e is undefined
[Break on this error] r=e[c]
That section is an if statement where the undefined error is the last line r=e[c]
In Internet Explorer's profiler I see:
Expected identifier, string or number Zimlets-nodev_all.js.zgz.js?v=100202213223, line 17525 character 211