I'm developing a mobile site using IUI.
It's a framework that makes web pages look like IPhone dialogs.
I have a tree-like catalog and on a certain level the page asks for a password to proceed.
I'm not quite used to IPhone and failed to find a native dialog with a password check that can fail.
What is the "IPhonic" way to handle an invalid password?
Should I display a modal window, an in-page warning in red or what?
When buying stuff from the AppStore, if the password is invalid you get a modal dialog that states that your password is incorrect and whether you want to retry or cancel.
A standard thing here is some kind of modal alert view.
IUI presumably implements this already (tho I can't find it from a quick search) but here is how it looks (skip to near the end of the video).
Basically a modal alert dialog but with some animation and a spotlight/shine effect. It is largely the animation that makes it feel 'iPhone'.