  The recently observed antiglitch of AXP 1E 2259+586 is inconsistent with
magnetar models, but may be explained as the consequence of sudden accretion of
retrograde matter or "propeller" interaction with surrounding matter. AXP/SGR
are explained as single neutron stars accompanied by fallback matter from their
natal supernovae. Their phenomenology may be partly accretional and partly the
result of dissipation of magnetic energy.
