Re: capacitance - I've noticed that both my mother's KT and my PRS-T1 are prone to bouts of spurrious "ghost touches". With the T1 I can make it respond (unpredictably, alas) by holding it too tight. (The plastic case is nice and light but it does flex more than some are comfortable with.) The odd ant or dust spec when reading outdoors does the same.
Given the increased resolution, hand-tuned fonts, and several years of technology development since the days of the Sony 700, I wouldn't assume the KPW will have degraded image quality because of the use of a capacitance film. At a minimum, I would wait for reviewers to start carping.
