Speaking with someone about Radio's categories, I realize that, with special templates, it'd be somewhat possible to reimplement publishing to LiveJournal and Advogato as a set of upstream drivers. Huh.
At dumbest, the #itemtemplate would be in its entirety:
<%paddedItemNum%>
and the other templates would be designed so the file to upstream would only be a list of post numbers. Then the upstream driver could fetch the data it needed from the real items and work as it does now.
'Course it could also just put a structure around each item, and let the user customize the item templates more, to appropriately format the items for publishing. For example, Advogato accepts some unplumbed subset of HTML, which is really annoying when I post items with hidden titles: Advogato will escape the leading < of the comment and show the entire hidden title (or the discussion URL which is the only other metadata I add that way), replete with the HTML comment code.
Anyhow, doing what Footbridge does with upstream drivers would be a better use of Radio's existing infrastructure than the postItem callback it uses now.
