FM radio. Listening to FM radio directly through the Music + Videos Hub. (Not available on all phones.)
Data Sense. Stay up to date regarding your data usage with data scythe. You can set a limit or easily keep track of which applications can access most of the data based on your data plan. (Not all providers offer Sense of Data.)
Skype. Voice over Internet Protocol (VoIP) applications such as Lync and Skype now have improved stability and performance features.
Internet Explorer. Due to the improved compatibility with HTML 5, you can now surf the web even better.
Further improvements. Includes many quality improvements for Windows Phone. [Editor's note: An improvement involves pinning a "Create New Page" tile OneNote]
As you can see, we have crossed off two points, as these two features are not present in our tipsters. Whether the radio function may be supplied with a later firmware update, is not known. If so, then also you need headphones to use this feature. Data Sense, however, still seems to depend on the mobile operator and therefore not to be present in non-branded devices. We can repeat that such a strategy in Germany does not make sense, since most buy a smartphone in the free trade only once.
The new operating system version 8.0. 10327.77 replaced 8.0.10211.204, but also the firmware, software radio and the bootloader has been updated. The exact version numbers (old and new) can be see from the screenshots.