My company recently shipped a huge update to our new iOS app, 1Password 4 for iOS, and among many bug fixes, new password fonts, and other things, we also added URL support.
My favorite of these is that if you are on a site in Safari, you can add
op before the
http and that address will open in 1Password's 1Browser.
Then name it something clever like Send to 1Password. I hope you enjoy this neat little feature.