Should or can an iphone app have a like button

I have just implemented FB login and status updates in my app following the sample app in the IOS SDK.

I know it is common practice to have a like button for a page but is it also true for an app?

I mean is it possible to have a like button in my app that when tapped makes an entry on my FB page stating I lik开发者_如何学Ce the app?

I can't seem to track the like feature down in the docs :-(

Thanks

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basically you can add UIWebView and put your html tags inside it

check this and this sample they may help you