Agree with the previous posts.
My original post was to demonstrate that there is no need for bigger sensors (full frame) to get better images (this in the FF speculation matter...). APS-C sensors are quite capable of producing top images.
Indeed, when I compare pictures from my WPI with ones taken with my IST-D, (both at 6 mpix), the ones from my istD are sharper, less noise, clearer, better and such than the ones from the wpi.
My point is than I am not for the billion pixels. I am for the better images that somehow, in point & shoot cameras like the wpi, have managed to pack very good results in very small packages that perform quite reasonable. I just want to pinpoint that such technology exists and if correctly applied to DSLR's, there is no need for bigger sensors.
Back in the film days, we had to deal basically with two things: Film grain and optical quality. Nowdays, we have pixel density, sensor quality, alogarithms, interpolation, A/D converters, screens, printers... etc. etc. etc.... you name it. Just remember that any chain is as strong as its weakest link. The problem with digital photography, is that is quite difficult to pinpoint where is the weak link. In the film days, we could easily point fingers at the film or the lens. Period.
Let's try to keep enjoying our beloved hobby (proffession) as is. Looking at the other side of the fence will only make us bitter. Don't forget your photo gear is an instrument for certain goals: Picture taking!
After 35 plus years of enjoying photography with Pentax gear, I could hardly find a bad photo that could be blamed on the gear. 99.999% of the bad results come from me and only me. The remaining 0.00001% is that time my AF540FGZ missed a wireless sync...
Robert B