Sorry to reply to myself. This was intended as a reply to steven777400 below, not to the article itself. I guess old people can't handle these new fangled interfaces ;)
No, 'cause it was hacked together with SV-startup attitudes, using the wonderful new system-du-jour (in this case, Arc) featuring ideological purity (sessions are just continuations — isn't that beautiful?) over something that would actually work ("Unknown or expired link.").