This note compares the single-shot and intensity cross-correlation proposals for x-ray imaging of randomly oriented particles and shows very directly that the latter will usually not be feasible even when the former is.
@article{arxiv.1007.3777,
title = {Strategies for processing diffraction data from randomly oriented particles},
author = {Veit Elser},
journal= {arXiv preprint arXiv:1007.3777},
year = {2010}
}