TapaTap, the online Social Contest website has optimized their site for the iPhone. SOme websites have been busy at work optimizing for the iPhone but in this instance, it makes a lot of sense.

TapaTap works by allowing users to send pictures taken by cameras like the one built into your iPhone and entering them into various contests.

According to Mashable, “To help launch the iPhone version, taptap is holding an “I Wanna Win an iPhone” contest, where users can submit artwork showing why they should get an iPhone. The most popular entry wins. The contest ends on August 15, 2007”

You could win gift certificates, electronics and cash.

Get tapping!