I think if Luke would read my entry made on March 23, 2003 he would't write stolen. Dare Obasanjo impl. the backend support on RssComponents, my part was the GUI. As I can remember SharpReader comes out first April 6, 2003. If Luke did read my entry, I could ask him the same question. As a old newsgroup reader I would say this "threaded view feature" is a natural requirement to visualize the blog's interconnections. As it is common to answer/reply another blog's entry on the own blog (as I do here), a normal aggregator cannot provide the interconnection feeling. However, as long as 25hoursaday.com is down, you may get a screenshot here.