E&T Magazine, also known as Engineering & Technology, presented 'The Open Source Issue' as Volume 4, Issue 15. This particular edition was published during the period of 12-25 September 2009.

Inside, readers explored various topics including "Crunch Time for I.T." and whether it was time to change software. Further articles covered "Mobile Mash-up" focusing on DIY phones, "Medical Patents" and their life-saving potential, and an intriguing look at the "Six Million Dollar Man".

E&T Magazine provides comprehensive insights into the world of engineering and technology. Each issue delves into current trends, innovations, and discussions shaping the industry landscape. It serves as a valuable resource for professionals and enthusiasts alike.