This is not a new invention by any means but it’s certainly a first for the iPhone 4. The iFlash is an external LED flash for the iPhone. Just attach it to the bottom of your iPhone 4 and you’ll add much needed light to your dark images. The flash is self powered and is also compatible with the iPhone 3G/3GS too. So your days of guessing who is in your iPhone 4 pic is over and now you can blind people with your flash as you would with a normal camera. The iFlash External Flash for the iPhone retails for $39.95.