Neutral meson photoproduction in SUf(3) chiral perturbation theory: gamma N->pi N-0

We present the results for the electric dipole amplitude for gamma N-->pi(0)N at threshold at the O(p(2)) level in SUf(3) chiral perturbation theory. We find that the SUf(3) results differ only slightly from the SUf(2) results. At the O(p(3)) level one encounters new, unknown counterterms to fix which one is likely to need the threshold photoproduction data themselves, thus, losing predictive power. We suggest, instead, that the difference between the proton and neutron pi(0) photoproduction amplitudes may provide a test of the convergence properties of chiPT in the present context. We urge that the neutron's electric dipole amplitude be measured.