The assignment is daunting. The “thinnest” and “funnest” iPods ever created. But the challenges are nothing new to the designers at Speck Product’s innovation lab in Palo Alto, California. Today, fast on the heels of last week’s new iPod announcement, the team is fiercely on task delivering fresh designs for the arrival of at least five new iPod cases between now and the upcoming holiday season.

“Our designers love to be challenged by Apple’s ingenuity,” Irene Baran, CEO of Speck. “Every change creates an opportunity for us to re-look at our assumptions. The net result has always brought us better products for consumers.”

Shortly, Speck plans to unveil and deliver ToughSkin, PixelSkin, SeeThru and at least two other previously unannounced case designs to market for the new iPod nano 4G and iPod touch 2G. The first cases will be available this month followed by subsequent roll outs in October and November. Speck will have a large selection of cases for the new iPod touch 2G and iPod nano 4G for the holidays.

For more on Speck’s new cases for the iPod touch and iPod nano 4G, visit www.SpeckProducts.com.