I tried them both out yesterday. Both are heads and shoulders above Safari, IMO. At this point I prefer iCab over Atomic Browser only slightly because it has a more attractive UI, has a bookmar bar, has the ability to save downloads to a download folder which could be synced to your computer. On the other hand, Atomic browser may be a tad bit faster, maybe. I haven't used either for very long so there are probably other differences I'm not aware of. Just curious, for those people who have used both, which one do you prefer and why?