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Dynamically Programmable Gate Arrays (DPGAs) are programmable arrays which allow the strategic reuse of limited resources. In so doing, DPGAs promise greater capacity, and in some cases higher performance, than conventional programmable device architectures where all array resources are dedicated to a single function for an entire operational epoch. This paper examines several usage patterns for DPGAs including temporal pipelining, utility functions, multiple function accommodation, and state-dependent logic. In the process, it offers insight into the application and technology space where DPGA-style reuse techniques are most beneficial.