Marware has debuted its C.E.O. Glide and C.E.O. Flip Vue cases for iPhone 3G. Available in black, white, or red, the C.E.O. Glide is a slim, sleeve-style case made with a firm-textured Nappa leather exterior and microfiber interior. It features a dual-purpose strap that both helps with iPhone removal and helps secure it by folding over the top of the phone and attaching to the other side with Velcro. The C.E.O. Glide for iPhone 3G will also include…