Gave DP 2 Merrill a test run today.
Beautiful shots. Thanks for sharing them.
I agree the battery is a weak link, but having traveled with the DP2M, I began to appreciate Sigma's efforts to keep the camera as small as possible. Two spare batteries should solve the problem, and they really don't take up much room. An extra charger can come in handy, too, if you're traveling and don't like waiting for the batteries to charge serially.
Think of the DP2M as an investment in photos that you'll want to keep for a lifetime. Yes, the batteries run down quickly and you have to use a tripod more frequently than other cameras, but the results are worth it!