This is an incredibly one-sided view. Clearly if you're a Mac developer, you switch to iPhone development and you start receiving truckloads of cash, you're going to think Mac developers would be stupid not to do the same. However:<p>1. Most iPhone apps are <i>not</i> incredibly successful.<p>2. Taptaptap has the full weight of the MacHeist marketing machine behind it.<p>Even if a swathe of Mac developers did move to iPhone, it wouldn't be long before the majority moved back to the Mac when the <i>iPhone Dream</i> didn't materialise. Indeed, if Mac development was going to die, it would have done already.