I have seen a few threads on a similar vein and not sure if there's any solution. I hate to drag around a laptop and use my iPad for everything when I'm away from my desktop. But I don't think there's any way to edit WP code on the iPad (meaning CSS, templates, php as presented in the admin screens of WP). I can edit posts and all that and I know all about the WordPress for iOS. But there is no capability to select and edit code in a text field of one of the admin screens. For some reason it just won't select. Btw, I have tried using Google's Chrome and the problem remains.
Now and then I find there are certain things you just can't do on the iPad...but no reason not to try to make it work. :-)
Any talk of a solution to this??