An electronic device isn't a game machine these days until it passes the crucial "Does it run Doom" test. John Carmack has been hard at work on Doom Classic, an official port of id Software's groundbreaking FPS for iPhone, and now he reports that it's been submitted to Apple for approval, only four months after Carmack said it would be ready. Soon – provided Apple gives the okay to a tour of Hell – we'll be swiping and tilting our way to a symphony of exploding barrels.

Doom Classic should support wi-fi multiplayer upon its release, with Bluetooth to follow if it's not already implemented. At least, that's what Carmack said earlier this year.

This article was originally published on Joystiq.