I think there's room horizontally to add more info on the HTC page. Perhaps a link to or the NewdevAnnounce: last 30 days table might also fit on there somewhere. I'm personally mostly interested in anything that makes contribs easier to find on the HTC page - I dunno, Top 10, most recent, bigger font, different organization (instead of alphabetical), etc. This page is where I really wish phpwiki had more capability; i.e. treeview, show/hide... But the page is already way too big.
What do you think of using your tables idea as a "quick update" step? Every so often, tableize the Newdev 30, paste each piece on a wiki page and link it in to the appropriate Topic page(s). That way they'd at least be accessible there, and we could later use Ian's php page to generate the howto.
Downside is we'd need another page w/list of all pages to keep track of what meta page was what. Been thinking we need something like that anyway, though.