Embed a response thread in XPages?

For my Bildr project I would like to embed a comment functionality where people can respond on pictures (and respond on the responses). I am wondering what would be the best (+easiest) way to do this? I did not find a reusable ‘response hierarchy’ control on OpenNTF.

David Leedy describes in a post how to create response documents in XPages. Chris Toohey describes how to get a similar embedded single-category view.

But I am wondering if there are any (other) good descriptions or rip and deploy examples? Take the thread from the Discusison template?