But they are way better than the resistance touch; I used to tap the screen 2-3 times with my stylus until I got a response. They are also better in that only your hand can make it respond, in comparison the resistive screens in which a touch from any object makes it go crazy.
Accuracy is secondary, when it takes aeons for the device to respond.
I agree that touch screens have a long way to go, but bear in mind, they have come a long way from what they were in early 2000's.
P.S Apple's touch is still the best in the market IMO. No one still comes even close (the gap has closed, admittedly) to the responsiveness that Apple's screen offers, and I'm comparing it with other capacitive screens.
P.S Regarding writing notes, I think if a stylus (similar to a pencil) with a rubbery tip (similar to a hand's touch) is used- just my idea, you can actually write, provided you load an app for that.