Marware has released four new cases for Apple's latest iPod series, available for immediate purchase from Marware's website. The new iPod nano cases include the Sport Grip priced at $10, the Sportsuit Runabout -- a neoprene wrist case -- priced at $20, the Sportsuit Convertible -- which allows you to wear your iPod on your arm, your hand, attach it to a belt or shoulder strap, or carry it as a stand-alone case in your pocket or bag -- priced at $30 and the Sportsuit Relay priced at $30. The company also announced a variety of soft and hard cases for the new iPod classic. The cases include the sport Grip priced at $15, the Trail Vue -- a sporty case with a cord management bungee -- priced at $30, and the Sidewinder -- a hard plastic case with pull-out side arm for earphone storage -- also priced at $30.