Various projects have to move from opensolaris.org over the next month or so, but access to hg.opensolaris.org is only allowed via ssh for security reasons.
There's a special "anon" (anonymous) account for hg.opensolaris.org that allows ssh pull access and does not require a password or ssh key.
It would be handy if the import code feature allowed this setup. Here's an example of the public clone steps normally taken for an opensolaris.org repository:
hg clone ssh://email@example.com/hg/pkg/gate