OpenPMU is a collaborative project developing a software defined Phasor Measurement Unit for Smart Grids and electrical utilities. This project is currently hosted by Queen’s University Belfast.
"PyLab Works" is a free and open source replacement for LabView + MatLab, written in pure Python. PyLab Works is much easier to learn and to extend than LabView and gives a much better programming environment than MatLab. Even kids can use it!