Great concept and nice looking implementation, Henry! I'd not remembered to check it out since you mentioned it in the pub the other (last?) week, but I'll definitely kick the tyres over the weekend :-)
Ha ha, hello John! I have since left the land of ec2 and this is running happily on a small linode instance, found it much faster for my monry. Yes my db's are in a totally different datacenter to my server but I don' think the site is that slow.
I'm bored this w/e, so do get in touch and let me know if I can lend a hand with some back-end systems tuning ... email, or via the phone number on m'webshite (also on devwiki, under "contact numbers" IIRC)