The other concern I have is the motivations of Google, and the perception of the malware problem that is being reported in the android platform.
I guess from my perspective, under my tinfoil hat, I would rather trust apple with my most personal computer information, than an advertising company (iad is a interesting counterpoint). Given that apple makes plenty of money on the device itself, they don't need to sell my information or bombard me with ads. An example is that icloud is an equivalent service to gmail, and I don't have to look at ads which is good.
Other than those couple of thoughts, a great summary of the current state of mobile handsets.