Lots of these are nice points but how did I miss the emulation tools in Chrome, this article was worth the entire read and more just for that, stunningly useful! (I already use the similar thing in Firefox).
EDIT: Having played with it this is fantastic, been able to lock an emulation to the developer tools makes flipping back and forth vastly easier.
EDIT: Having played with it this is fantastic, been able to lock an emulation to the developer tools makes flipping back and forth vastly easier.