a) Wrong, multi touch is very useful even for small devices. Eliminate all the needs for extra buttons and save space in device design.

b) True but capacitive do not require presure to register signal and there is a kind of capacitive that I read about sometimes ago had the touch and pressure sensitivity. Can't remember the link.

c) Capacitive is more secure when you put in your pocket and you do not need to worry about pressing buttons because it needs skin contact to register signal.

d) Wrong, Capacitive can produce very high resolution and currently the highest resolution device in the size of 3.5inches is capacitive (iphone 4), both capacitive and resistive resolution is no longer a gap. Indeed the Capacitive has evolved way beyond resistive screen technology. Eg: super Amoled Plus etc.

d) Now this one you're deadly wrong. Capacitive is required no need of hardware keyboard and at the same time it can be used without any extra keyboards. But Capacitive also can be used with keyboard. Take a look at HTC keyboard devices or Galaxy S Pro.
Keyboard is just an option toward mobile design and it doesn't relate to the screen technology the device is using. Only two things that capacitive can't do what the resistive can't do.

1- pressure point signal and it is sharp, requires no skin contact, any objects can be used. Must apply pressure to work.

2- Accuracy point of signal. But sometimes requires multiple press or click on smal object or links to make it registered. Loved by those who'd like to draw and to scratch their device's screen and on those small screen.


Capacitive has it flaw but the flaws are usually what the resistive do best anything else capacitive does better. Sensitivity may be bad for some but for me I find it nice and smooth to use. Those who'd find it over sensitive is because they are used to the resistive screen and usually like to rest their finger(s) on the screen when using the device (resistive habit). Those are very common