sometimes-and i do prefer iphone but apple needs to keep up and have the latest and greatest starting with a higher ppi screen.
Really, why on earth does Apple need a higher PPI screen?
Unless you have super-human eyes, you aren't going to be able to see a visible difference between the iPhone PPI and a higher one at normal usage distances. All a higher PPI is going to do is decrease battery life and decrease graphics performance. Plus, it would mean developers would need to re-do all of their graphics, again.