TechnoDoc | # 41 | 2007-07-09, 21:26 | Report

Of course it can. If the PPI is higher, then the images will be more 'crisp' due to the smaller pixel size.

Karel Jansens | # 42 | 2007-07-09, 21:58 | Report

What's the difference between Dots Per Inch and Pixels Per Inch?

barry99705 | # 43 | 2007-07-09, 22:29 | Report

Dots per inch is a printer term, Pixels per inch is a display term. Neither really says anything unless you know the size of the dot or pixel. Kinda like contrast ratio's for displays. Is the 0 a measurement of the display turned on with a completely black screen, or turned off? Depending on the manufacturer it could mean either.

Milhouse | # 44 | 2007-07-09, 22:47 | Report

I think in the context of this discussion, dpi and ppi are synonymous.

And the iPhone screen has a lower pixel per inch than the N800...

N800 dpi/ppi => 4.1" diagonal, 800 x 480 pixels => 228 dpi (or ppi)
iPhone dpi/ppi => 3.5" diagonal, 480 x 320 pixels => 165 dpi (or ppi)

So if text on the iPhone appears "crisper" it's not due to the screen, more likely the underlying rendering technology. I would expect images to be more accurate/crisper on the N800 screen due to the inherently higher resolution.