Well i went to a Verizon store and played with the DX2 and the Charge right next to it. Findings IMO are similar as the DX2 screen was good, you can still see the "grid" when up close and moreso if it was a green background. It didn't bother me that much if at all and mostly went away when i held the phone at a normal length away from my eyes, not a "deal breaker" at all if the Bionic has this screen but i wouldn't mind a "better" one. It was also VERY bright, and white whites. The phone was very fast and snappy, with no lag and that's with running 2.2, it can only get better with 2.3 and above.
The Charge has a Very nice "feel" and screen, sharp looking icons. But like others said, it looks oversaturated and cartoony, i wouldn't mind but not a very "business" like phone. Charge seems to shoot for the 13-25 crowd and the DX2 and other Moto phones have that business like industrial look to the OS and design of the hardware.
That said the pentile doesn't bother me at all and the text on the DX2 is sharp and pops with the bright white screen, i'll wait for the Bionic. There was this nice young girl (20s?) with her mom trading in the incredible for a different phone and came over to the Moto section with me and told her mom something about the Charge. Well i looked up from the DX2 and recommended she get the charge as it has alot of postive reviews and buzz surrounding it, it felt like a solid recommendation and i didn't want to explain this whole Bionic fiasco to her
P.S. Quit comparing or complaining about a screen you haven't seen and go look at the pentile in person before forming an opinion based soley on pictures that show the worst of it zoomed in on the web. I agree some people dislike it and IMO it could be better but its not bad at all and comes down to personal prefrence.
EDIT:
Also the Charge was slightly laggy when moving around, DX2 was faster, but that might have been because of all the junk on the phone in terms of widgets and such. I'm sure its a capable phone.