Rocketeer Adventures #2 is available now @ Curious Comics. And seeing as how we're on the subject of jet-packs anyway, click the link below to check out an amazing tribute video to Dave Stevens and his high-flying creation from the animation wizards at Digital Banana Studio. You won't be sorry!
EDIT: Forgot to mention that I first saw this video on the excellent Bleeding Cool website -- great resource for news & rumours from the comic & movie industries. Check it out!