I'd prefer a resistive screen, with an stick Nowadays there are also resistive screens with multitouch... but i heard that they doesn't work very well...

I would be better an OLED (Samsung) screen, it is more expensive than a TFT IPS (Apple, Jolla...) or TFT TN ("normal" ones, N900...), but it have better, perfect colors (specially dark ones), and less power consumption.

I would like to know about the cost of just the PCB, to upgrade my N900... ¿There is any estimation?