Quasi‐Periodic phenomena has been seen in several types of long‐period (P > 50 ms) accreting pulsars, including the Be/X‐ray transients and the super‐giant disk‐fed systems. It has also been seen in the ultra‐compact LMXB system 4U 1626‐67, and the unique LMXB transient GRO J1744‐28. I summarize these observations, and discuss what can be learned from observing with an instrument more sensitive than RXTE/PCA. © 2004 American Institute of Physics