Hey thanks, Jun, I'm back to working portal/.LRN re-integration (i.e. rewriting applets and portlets and upgrade scripts) after being away from it for a couple of weeks, partly relaxing, partly helping a couple of universities with unrelated tasks.
Anyway ... good catch on the above stuff, I missed those when I modified the portal package to be a non-singleton package.
As far as your subsite::after_mount problem, I have no clue, as I've not tried integrating the portal package into subsites automatically at this point (though it would be good to have this capability).
