Tom Bihn Bags has updated their site with information on two new protective sleeves specifically designed for Apple’s 17-inch PowerBook. The Size 1 Mitre (US$30) is a basic sleeve in a titanium color to protect your PowerBook from scrapes and scratches. The Size 1 Monolith ($40) is a vertical hard-sided case with full suspension and padding that will fit inside a daypack/bookpack.