For the curious, here's a few extra links from this talk: http://warpspire.com/talks/responsive/

Hope you enjoy!

I'm glad that designers are starting to see the problems with page state that's not tied to URL state. Nearly all the sites I've seen using #! state have got this wrong.

I loved the site hosting the slides—does anybody here have an invite or the ability to setup a new account? Would be much obliged.

The infinite scroll example he linked to in the presentation is very nice. Putting the max_id in the URL is a great way to save the state.

http://warpspire.com/experiments/history-api

the idea is good, but the implementation (from user perspective) is not 100% correct. try scroll somewhere, say you see text "My dad just told me I'll get my late grandfather's cornet" on top and refresh the page, you will see different stuff.

Loved this, would suggest anybody further interested in real data on page load speed to check out:

How site speed impacts conversion rate / engagement:

http://www.webperformancetoday.com/2010/07/01/the-best-graph...

How site speed impacts Google rankings (and tools to asses / fix):

http://www.conversionvoodoo.com/blog/2010/04/official-google...