According to AppleInsider, two new iPhones have shown up in Carphone Warehouse's  inventory system today. The four placeholders are for black and white varieties of both a 16GB and 32GB iPhone, presumably the next generation iPhone rumored to be announced next week at WWDC.

Carphone Warehouse is an authorized Apple retailer, but it's not clear if they have received word from Apple regarding the new iPhones. To date, we've heard numberous reports of new iPhones in various capacities, so today's report simply adds fuel to an already growing fire.

Tune in next week for our "Not So Live, Live Coverage of WWDC".