I've seen Surface tablets at the store, they look nice, problem is I don't like Windows, I know Windows Surface might be different than previous versions and might meet my "old-fashion needs", but the bitter taste Windows has left in the past still remains.
Then yes, seems like your only option for now is an Android based tablet for those times you want to be able to upload an arbitrary file to a website.
Or, you can tell Apple directly how you feel.
http://www.apple.com/feedback/
It's probably your best bet, if getting a feature added to iOS is your actual goal with this thread.