  In the era of Chandra and XMM-Newton, the detection (or nondetection) of
diffuse and/or point-like X-ray sources within planetary nebulae (PNe) yields
important, unique insight into PN shaping processes. Diffuse X-ray sources,
whether due to ``hot bubbles'' or to collimated outflows or jets, allow us to
probe the energetic shocks within PN wind interaction regions. Meanwhile, X-ray
point sources provide potential diagnostics of magnetic fields, accretion
disks, and/or binary companions at PN cores. Here, I highlight recent X-ray
observational results and trends that have the potential to shed new light on
the origin and evolution of the structure of PNe.
