iPod Observer has posted a picutre that alleges to be the 3G iPhone. You can see that the iPhone in the picture has a glossy black case compared to the aluminum case of the original iPhone. One reason for Apple to replace the aluminum case with a plastic case is better reception for the 3G radio. The iPhone in the picture also shows that it is an 8GB iPhone, would Apple release an 8GB, 16GB, and 32GB 3G iPhone? As with all rumored Appke products we see "leaks" that usually turn out to be fakes, so take this with a grain of salt. Stay tuned.