re: Don't Give Up On The PC
The transparency issue is important. I think at least some OEMs fail to talk clearly about Haswell and other factors because they're still also trying to sell non-Haswell hardware. The Surface Pro would benefit from Haswell's GPU firepower, for instance, but the device would REALLY benefit from Haswell's battery life improvements. But if you ask Microsoft (or at least a lot of people at Microsoft) about this, you're likely to hear them attempt to side-step the issue.
The pinch-to-zoom issue is interesting too. I really like the Apple implementation of this feature, because it's mostly done through a trackpad, which keeps my hands in their "ready" position at the keyboard. For some activities, it's fine to touch the screen, but for others, I find that I disrupt my workflow when I lift my hands from the keyboard/mouse to the screen. Some upcoming Ultrabooks are supposed to have better trackpads, which should give Windows 8 laptop users the best of both worlds-- touch functions via both the touchscreen AND the trackpad.