I’ve been messing around with this Flash CS5 30 day trial at work and thus far it will be a fantastic upgrade when I eventually buy it. Not because of new features or the “Adobe interface” (which honestly is just Adobe tabs wrapping old Macromedia UI elements), but because Flash CS5 is a Universal Binary for Intel powered Macs. And…wow. What a difference. CS5 launches in barely a second, the publishing of SWFs is incredibly fast, and the application UI feels much more responsive.