Boomwave and ivyskin have recently announced new cases for the iPhone 3G. Boomwave is offering leather-based cases, while ivyskin is providing polycarbonate/polysilicone protection. Boomwave has two new products in its KRUZ series, the KRUZ Faux Leather Hardcase ($24) and the KRUZ Cowhide Leather Softcase ($28). ivyskin is offering the XyloT3 ($35)