The cursor will click on the apps, click on the little dots to change pages, or swipe with magic mouse. Closing apps can have a shortcut on the keyboard. U don't have to swipe to delete an email, you click on delete. And u don't have to zoon while yu raw using. Mouse, it's mostly for making text input, copy and paste, etc.. easier. But if you just had to be doing that, there's a magic mouse for that. All really non complicated ways tonget around your "limitations".
tangent? maybe - but who on earth would want to use a mouse with an iPad, especially when you take into consideration the main use of the thing (e.g. portability, using on the train, using while on holidays etc).
if you plan on having it sitting mounted on a desk, with a keyboard and mouse - get a laptop.
just sayin