E-Plus in Germany is currently preparing to release the Windows Phone Tango update to consumers, according to reports. Much like Australia's Telstra, the update is set to hit Lumia 800 owners. "Tango" introduces a number of new features and improvements to the experience, including added MMS functionality and WiFi tethering (depending on carrier restrictions and firmware versions).
Be sure to keep an eye out for any update notifications and let us know when you receive the release.
Source: Mobile Professionals, via: WP7App.de; thanks, Tali, for the tip!