For this annual conference at the Berlin Messe about Linux, hence the name LinuxTag, one of the leading sponsors of the event is... Microsoft. Microsoft became a partner with LinuxTag for their 2011 event and they are back this year as a "partner", per their 2012 web-site.
Microsoft's sponsorship of LinuxTag 2012 is very present both on their web-site and in physical form at the event. Microsoft was also widely advertised at LinuxNacht, their usual evening reception for the event, with table-top Microsoft tri-folds and their logo on the projected slides. On Thursday during LinuxTag, there was also a Microsoft session entitled "Microsoft and Open Source: An Update on the Journey."
The abstract for the Microsoft openness talk by James Utzschneider: "Microsoft has become increasingly open as a company and increasingly focused on investing in standards and interoperability as a way to provide customers with flexibility and choice, helping them optimize their mixed IT environments. In this, his second Linux Tag talk, James Utzschneider, Microsoft’s General Manager for Competitive Strategy, will share his perspective on Microsoft’s openness journey – including the company’s commitment to cross-platform interoperability, its current relationships with open source technologies and communities, and how customers and partners are responding." I didn't have the time to stop by this talk, but from those that I know who attended they all found Microsoft's views to be a mix of bogus, comical, and entertaining remarks.
Microsoft's lessons learned from Linux, etc. Microsoft is a contributor of the Linux kernel due to their Hyper-V Linux drivers and other work. With their acquisition of Skype, they're also continuing to support the Linux client.
openSUSE beer. As far as Microsoft's unusual Linux sponsoring, they also continue to spend thousands of dollars per year on advertisements via direct buys on Phoronix.com... Ads for Windows 7, Internet Explorer 6 / Windows XP EOL migration, Office 365, etc. I'm not sure what return on investment they expect off of Phoronix.com advertisements, especially when I think Windows 8 is mostly a crap wreck and relay words on how Valve's Gabe Newell isn't liking the direction of Microsoft, etc. Yet they continue to spend thousands annually on traffic for those who aren't Phoronix Premium subscribers.
got in bed with Microsoft. Nokia and Microsoft remain passionate lovers to this day after they tossed out the Linux-based MeeGo partnership with Intel and the Linux Foundation.
Nokia's sponsorship of LinuxTag 2012 though does make some sense since they continue to support the Qt tool-kit. It's not clear what Nokia's ultimate plans are for Qt, I've heard various talk from different developers in private, but for now the Qt tool-kit developers at least continue to be employed by Nokia and they are preparing for their Qt 5.0 release later in the summer. Nokia though has already sold off the Qt Commercial work. Nokia wasn't a sponsorship partner for LinuxTag 2011 or 2010.
Following Oracle's acquisition of Sun, they pissed off the OpenOffice.org development camp, killed off OpenSolaris, and VirtualBox Linux kernel drivers are tainted crap, among other measures to alienate open-source / Linux fans. Oracle's sponsorship of LinuxTag at least isn't as strange as Microsoft's large presence.
Other LinuxTag 2012 partners/sponsors include the Berlin RootCamp, XL Energy Drink, Berlin University of Applied Sciences, Sophos, and the Open-Source Business Alliance. Two of the high-profile companies that are missing this year as LinuxTag sponsors compared to previous years of this major Berlin Linux conference is IBM and Google.