An earlier version of Safari mobile showed a loading wheel whenever it was loading AJAX/COMET. I found it infuriatingly annoying: it displayed at inappropriate

An earlier version of Safari mobile showed a loading wheel whenever it was loading AJAX/COMET. I found it infuriatingly annoying: it displayed at inappropriate times, when something was happening in the background but the user was not waiting. Unfortunately this is not something that can be handled well by the browser.