  Motivated by recent experimental results and ongoing measurements, we review
the chiral perturbation theory prediction for radiative Ke3 decays (neutral
kaons). Special emphasis is given on the stability of the inner
bremsstrahlung-dominated relative branching ratio vs. the Ke3 form factors, and
on the separation of the structure dependent amplitude in differential
distributions over the phase space. For the structure dependent terms, an
assessment of the order p^6 corrections is given. In particular, a full
next-to-leading order calculation of the axial component is performed. The
experimental analysis of the photon energy spectrum is discussed, and other
potentially useful distributions are introduced.
