One of the most prominent features of iPhone 4 is its dual camera system: a camera in the back of the phone that captures video and pictures, and a camera in the front that facilitates video chat (or ‘FaceTime’ as Apple calls it).

But FaceTime is not the only thing you can use the front camera for. “App Cubby” has come with a wonderful new iPhone 4 app that acts as a mirror. The app has been appropriately titled “Mirror FREE.”

Mirror FREE captures an image from the front camera of the phone. Since the image will be moving as you do, you can use the display as a mirror. The entire phone’s display screen is covered by the image to give you the maximum possible mirror area. The snapshots you take through the app can be shared via email, Twitter, or Facebook.

If you area supports iAds, you can enjoy the new advertisement platform by Apple which features visually brilliant interactive ads based on HTML5.

Mirror FREE is a free iPhone app that is compatible with iPhone 4 and requires iOS 4.0 at a minimum. Sized at 3.9 MB, the app can be obtained from the App Store by clicking here.