The Sony NEX-C3 is starting to trickle into stock at online retailers.
B&H Photo has models with the 18-55mm lens in stock and models with the 16mm kit lens available for pre-order. Here’s the link to the NEX-C3 at B&H.
You can get in the pre-order line for all the models and kits at Amazon.
It looks like the pink NEX-C3 kit is in stock at Adorama, and the rest are available for pre-order there.