Liowsn (Linux for works with WSN) was created to assist teachers, students and people involved with projects of Wireless Sensor Network (WSN). The operating system is Ubuntu 9.10 remastered and it contains several tools for simulation and testing installed to work with WSN.
Discussion Group: http://groups.google.com/group/liowsn-users
User manual: https://dl.dropbox.com/u/4912938/LiowsnManual_EN.pdf (English Version)
https://dl.dropbox.com/u/4912938/LiowsnManual_PT.pdf (Portuguese Version)