This was my main gripe about the iPad (even before the iPhone 4 came out) and the reason I didn't purchase one. The dpi is too low, especially for a device you hold in your hands (much closer proximity than a computer monitor). It took them a good 7-8 years to push a higher res bump on the 15" MBP (they were laughably late to that game), and I have a feeling it's going to be another couple of revisions before we see a real screen on the iPad. I'd love to be proved wrong, but Apple doesn't have a good track record in this area. That being said, the iPhone 4's screen is absolutely gorgeous - no question about it.