For those of you who have smart phones / iphones, here is an app that was recommended to me recently: d6 kit free.
Want to roll 30 die without having any propping up on edge? Well this is probably for you. I've seen it used in a game of 40k a few times and: it does work. But I can't help but feel there's something cool (and traditional) about cupping a wad of die in your hands and rolling them on the table. Call me a traditionalist, but I can't see these kind of apps taking over from actual physical die rolling anytime soon. But maybe in the future, who knows?