Hi, I'm Junya, engineer of Hatena.
I was very grad to read your detailed report.
We don't use Catalyst, but we use our MVC framework called "Hatena Framework" which we made by ourselves.
Naoya made a presentation about our backend system on YAPC.
http://d.hatena.ne.jp/naoya/20060404/1144121846
These slides don't include much about the framework, but you can see more about our systems.
Thank you.
Comment on Re: My Impressions of YAPC::Asia 2006 in Tokyo
> I'm curious how you found my post, are you a regular visitor to PM, or did a Monger find it?
I found your article by Miyagawa-san's Hatena Bookmark.
http://b.hatena.ne.jp/miyagawa/20060403#bookmark-1682389
He bookmarks many articles related with YAPC.
And yours was one of the longest articles about YAPC. I enjoyed it.