I’ve just released a new B2 hack. Inspired by a conversation on IM about the recent request to be able to turn off a blog from the admin tool; I have produced a hack which will allow you to define arbitrary extra options, set their values in the admin tool and use them in your templates.
You can see my announcement on the B2 forum here.
You can find details, and download it from the B2 Extra Options page.
Please post bug reports, fixes, comments, questions, etc. to this topic in this forum.