Since nobody responded to my questions here, I figured I would spice up the pot a bit by asking if anyone is willing to code that for us for some cold, hard cash. Please read that forum thread and make an offer as to how many US Dollars you would code it for. Thanks! :)
Comments
General node relation module
This could fairly easily be implemented using Adrian's planned general relationship module.
You could (e.g.) relationship-enable a page or story node type to use blog nodes as the source.