I didn't address it in my news post (wrong audience) but I wanted to assure you all that the account code logic & the rest of the new ljcom-specific logic is cleanly separated between the livejournal and ljcom CVS modules.
Most interesting is the new LJ::register_hook and LJ::run_hooks functionality which I plan to use a lot more.
Go look at the new htdocs/create.bml in 'livejournal' ... it does 'runhook' on 'post-create', which is registered in ljcom::lj-bml-local.pl, which is a callback into LJ::Pay::, which is also preloaded by lj-bml-local.pl. Neat, huh? I thought so.