backstory: I hate Apple.
I've seen a LOT of awesome offline apps for android, not much experience on android tablets other than the floormodels I've spend hours on, the GPS apps are phenominal, and from what I looked up, in a short amount of time, I don't see much for the iPad, like I said, ebooks are all the same on either, you can even get a nook or kindle at a small fraction of the price of one of these to keep the wife happy. I just see a lot more coming from android than IOS because IOS hasn't changed much in the last 2 years or so, minor things here and there, and android is upgrading like mad every 6 months or so.
I think an android based tab will cost you less, and give you more. Just make sure you get a nice honeycomb tab.