Link: An Engineer’s Guide to Bandwidth (Yahoo! Developer Network Blog)

Excellent detailed info on how high latency impacts performance of your website.  Ever wonder why your zippy server response time seems slow when you go into the real world?

SproutCore apps in some ways actually make latency effects worse for your app; not because of SproutCore itself but because now so much of your app is happening locally on the client, every high-latency request to the server becomes painfully obvious.