Coremark isn't a good benchmark. I have been benchmarking Snapdragons and Atoms myself on a variety of integer and floating point codes. I will publish them sometime soon but Atom-based netbooks came ahead of the Snapdragon based systems I had access to. I suspect this is partially because you have more memory bandwidth available in netbooks compared to mobile devices.

edit: Also, I do expect results to change quite a bit when the Krait architecture comes into play for Qualcomm.