A new firmware hack aims to bring the new split-screen interface of the iPod classic and iPod nano (with video) to the fifth-generation iPod. The hack, which works on both 5 and 5.5G iPods, is unsupported by Apple, and several Digg users claim that the hack “bricked” their iPods. Installation of the firmware requires iPodWizard 1.3.7, a Windows-only iPod utility. While the hack aims to add iPod classic-like functionality to older iPods,…