Last Tuesday, Speck has announced its PixelSkin cases for the iPhone 3G. Ivyskin is offering its iPhone 3G XyloT3 case, and iSkin has announced its new DuoBand for the iPod nano. The textured PixelSkin cover for iPhone comes in seven colors.

The PixelSkin costs $24.95. Made of silicone, its form fitting for the iPhone and has slightly thicker corners to protect the gadget from scrapes and bumps. A textured tile pattern gives us something to grab onto, and the case offers access to all ports, and sensors controls. It comes in white, black, pink, purple, blue, green and yellow.

The Xylo Touch-Thru (T3) costs $34.99, which is a hard shell case that lets us touch and still register our touches on the iPod’s screen. It uses “Surface Xylo Wave” (SWX) technology that pass over the touch screen panel without interference.

The iSkin DuoBand for iPod nano 3G costs $39.99. The purposed of this case is to be used for athletes and others who want to carry their iPod nano on their arm, and it is designed to enable us to slip our iPod nano in and out of the band without removing it from the protective silicone case. It is available in black or red.