I come from an iOS background (my last phone was an iPhone 4, my last tablet was an iPad 2; now a Galaxy Nexus and Nexus 7) and am not frustrated in the least by "a lack of good apps."

I'm pretty happy with everything on my phone: the Google apps are great, the Kindle app is completely fine, AndChat, Grooveshark, Songbird, a bunch of emulators for games...all works just fine. Some apps don't look great on the tablet, but I use the tablet almost exclusively for Kindle and ePub reading (works fine) and some web browsing (ditto).

What do you use for mail?

I've tried many mail apps for my Android tablet, and none comes close to the mail app for iOS. The one exception is the Gmail app -- but I don't use gmail (ironically, for lock-in reasons).

I use the Gmail app and it is fantastic. Best mail app I've ever used on any device or computer.

I dupe all my email from my Google Apps accounts to a local server, so it's not a big deal for me.

What are the iOS apps that you feel are lacking in Android? Honest question, not flamebait. Heck, maybe there's a startup opportunity there :)

iPhoto, iMovie, Garageband, Paper, music apps e.g. AniMoog, Newspaper apps, Diet Coda. Those are just a few I use. But seriously EVERY tablet app will be better on iOS.

Why ? Because Apple/community encourages developers to rethink the tablet experience. Android encourages them to simply scale.