The problem with this is as follows - when Android gets updated, iPhone does not. It takes Apple a while to copy Android features so you actually are in a worse situation than most Android users.
What features? Apple basically copied Android's better notification system, but other than that I guess I'm not sure what Android has. I mean that's not just a benefit from how the OS works (closer to true/normal multitasking and open software support for example).
Regardless, my main concern is with security issues. Apple's not blazing fast about fixing stuff, but at least as long as your iOS device is supported, you get updates. Android stuff I think NORMALLY ships with old/dangerous OS releases.
I mean I had a 1.6 device a year or two after 2.1 hit, and 4.0 has been out ages, yet the MAJORITY of devices I see are running 2.3, not even 2.4.
That's the number one reason I can't take Android seriously, as otherwise there's stuff I do like about it. I mean it's pretty well thought out, I prefer having what's basically a mini-PC...actually open, and I like that stuff like fairly functional IM clients are possible (because of multitasking) and Firefox, etc.
But the security risks are...not nice...and also I don't know that there are any programs for it that can do a good job replicating what iTunes gives you for podcast management-I've seen NOTHING that handles podcasts so well, as the way I use them, I need to be able to see the play count, and delete or save out ones I've already listened to. Astonishingly the newest Zune Desktop and Sony MediaGo software I've used doesn't allow for that.
(I don't know...maybe Winamp for Android is super full featured, but without a modern Android device to try it on...)
Oh, I do like that the wifi toggle is MUCH easier to do on Android. Not sure why it's so hard to get to on iOS, although thankfully at least screen brightness is easy on the iPad, but not the 3.5" devices.
EDIT: Actually I guess that's not 100% fair since the Nexus devices give you a more iOS-like level of support. I don't think they support even those as long though, but at least they're a heck of a lot better than everything else...
BUT the Nexus One I think isn't supported anymore, and it's basically what, not far different from an iPhone 4's hardware? It should still be supported.