iOS Development: What are some reasons I should to use XAuth to authenticate a twitter user?

I see many people using XAuth in their app to authenticate twitter users and I'm wondering what are some situations that I would want to u开发者_开发问答se XAuth in my own apps.

Thanks for your wisdom!

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If you have spent a lot of time hand crafting your UI, it can suddenly be very jarring to the user to have to goto a different UI to authenticate. For mobile in particular this can be jarring if the authentication page is not optimised for mobile as used to be the case with Twitter

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xAuth lets you skip showing a web view containing the Twitter login. It makes for a simpler and less jarring user experience for non-web apps.