The PSXSDK is a free and open source software development kit that enables anyone with C programming knowledge to make programs and games for Sony's PlayStation console. Everything was either written from scratch or based on already available open source resources. It is thus free from any proprietary code and fully legal to use. The SDK is mostly geared towards a *nix environment, but is fully usable with emulation environments such as MSYS and Cygwin.
perfino is an APM tool for monitoring JVM with cross-over functionality for profiling. It records business transactions and telemetry data. The browser UI is optimized for both immediate problem solving as well as historical analysis. Thresholds, triggers, and alerts can detect anomalies, handle notifications, and escalate data collection. In addition to monitoring functionality, perfino has built-in profiling functionality for performance emergencies. Full JVMTI-level sampling and a hand-off to its sibling product JProfiler provide a defense in depth like no other APM solution.