Mojo66 writes "After project savings had been estimated to amount to at least €4 million in March, more precise figures are now in: Over €10 million (approximately £8 million or $12.8 million) has been saved by the city of Munich, thanks to its development and use of the city's own Linux platform. The calculation compares the current overall cost of the LiMux migration with that of two technologically equivalent Windows scenarios: Windows with Microsoft Office and Windows with OpenOffice. Reportedly, savings amount to over €10 million. The study is based on around 11,000 migrated workplaces within Munich's city administration as well as 15,000 desktops that are equipped with an open source office suite. The comparison with Windows assumes that Windows systems must be on the same technological level; this would, for example, mean that they would have been upgraded to Windows 7 at the end of 2011. Overall, the project says that Windows and Microsoft Office would have cost just over €34 million, while Windows with Open Office would have cost about €30 million. The LiMux scenario, on the other hand, has reportedly cost less than €23 million. A detailed report (in German) is available."