Hi Han, what I meant was that in using them, the 49G+ screen is more crisp. Better separation from the background, which is more cream color, compared to the 50G which has a more yellowish tint. Furthermore, the 50G pixels look slightly fuzzy if that makes sense almost just slightly out of focus compared to the 49G+ unit I have. It probably has something to do with a slight change in the plastic overlay? Just guessing. This 49G+ is a good, late model one thought - the keys are nice, although not quite as good as the 50G keys.
Quite honestly, the 50G keys are probably about as close as a modern "all plastic" unit is going to get to the 48GX keys. Just not sure how they could do it any other way?
The 48SX screen looks particularly bad next to that 48GX, but that is a mint, late model with the black LCD and it is head and shoulders above the SX and even the regular G/GX screen. I should probably add in a regular G or G+ model someday with the standard issue blue screen to show the incremental difference.
Can anyone tell me why HP did not switch to the black LCD screen much earlier in production? It does not seem to make sense why they stayed with the blue one so long.
@Eddie - I'm debating making a web page for them, we'll see - haven't completely made up my mind yet. I was going to do it a long time ago but was discouraged by some as there is so much fragmentation already. Perhaps a better way would be to add the later models onto an already excellent site like this?
Lastly, RE: the 28C/S - is this model considered enough of a grapher to include in the list? If so, I may try to source one if not too expensive for the "group photos", etc. The 28C/S was well before my time, so I have never used one. :-)