The onslaught of iPhone 3G cases continues with several recently announced offerings from iPod accessories maker iFrogz. These new cases are the Wrapz, Treadz and Luxe. The first two price around $15, while the Luxe is around $20.

All three cases are available now in a variety of colors. iFrogz says the basic design of the Wrapz case offers 100 percent silicone encasement, while the Treadz case offers an “extra-thick” silicone casing and a tire tread design. The Luxe case, meanwhile, provides protection with a hard, plastic shell, finished with a metallic facade and a “soft touch” feel, that slides around the iPhone 3G while still allowing access to all ports and sensors.

iFrogz