  We present recent X-ray and radio observations of pulsar wind nebulae
discovered in EGRET error boxes. Two XMM-Newton observations show the X-ray
extent of the rapidly moving PWN associated with the variable gamma-ray source
3EG J1809-2328, and a trail coming from the new millisecond pulsar PSR
J1614-2230 at high Galactic z. We also briefly discuss three PWN that are HESS
TeV sources including a new HESS source we argue is associated with the Eel
nebula in 3EG J1826-1302.
