Has there been any detailed writeups on the SAMOLED display yet? Arstech had this great one on the N1's AMOLED screen and it seems to me that it's really not very good, but I haven't seen one in person. What I do know is the iPad's IPS display is fantastic (as long as you can get one with even backlighting- hoping the smaller iPhone 4 size will minimize that problem) — near infinite viewing angle, very vibrant colors — so taking that with a better bonding process moving the pixels closer to the surface and WAY higher PPI, I think the iPhone 4's screen will be king when it comes out. Remains to be seen though. Samsung doesn't have any SAMOLED screens out there yet either, do they?
Is the viewing angle on the 3GS bad? Aside from the glare on the glass I don't understand how the current phone has a bad viewing angle.