You can clone with
Add "send-to-kindle" functionality. Similar to http://sendtokindle.heroku.com/
Just a "send mobi to e-mail address" function would be great. (After all, Kindles come with the document conversion service that works over e-mail.) Then stick the e-mail address in a cookie so I don't have to type it every time I go to perlybook.org!
Here is some code that does this thing (German): http://perlmeister.com/snapshots/201208/index.html#ab_die_post
fix #6: final commit to enable 'send mobi via mail'