Small-angle diffraction with a pulsed neutron source, using time-of-flight analysis to separate neutrons of different wavelengths, offers a very wide simultaneous Q range coupled to good Q resolution. Data reduction to allow for wavelength-dependent effects may be achieved as a matter of routine. The cold neutron flux available from accelerator-based neutron sources does not yet fully match that of the most intense reactor sources. Simula- tions show that the performance of proposed future instrumentation would be largely complementary to that of the best fixed-wavelength instruments.