There’s noshortageofways to get sound into your iOS device, but one thing has been missing from the field up to this point: a handheld accessory to help you hone your Sammy Hagar (or Anderson Cooper) impression while you’re FaceTiming with Gramps. The iRig vocal mic fills that gap, and the included Vocalive app does its part to help you rap over your favorite beat, add sick and twisted FX to your vox, and share your jams with your file-sharing friends. But is the iRig a Napster-level entry into the iMic field? Is it more of an eDonkey, or just kind of a KaZaA? Read on for our impressions of the SM58-feeling cardioid.