Plaffo.com has been able to confirm via Nokia Italy support that the Nokia Lumia 800 will soon get support for DLNA support via an app in Marketplace.
The email read:
Dear Mr. xxxxx,
Thank you for contacting Nokia Care.
In relation to your request, we inform you that the Nokia 800 Lumia DLNA support through an application which can be downloaded directly from the Market Place.
In this regard, in order to learn more about this service, please visit the page below:
We take this opportunity to extend our warmest greetings and remember that we are at your disposal for any clarification and future.
Rumours of such support came after MobileTechWorld found multiple references to Media Sharing in the latest firmware pushed out to devices.
The addition of DLNA support will certainly round our the device immensely, but I feel it should be accompanied by an accessory like the HTC Media Link DLNA adaptor, which would take it from a bullet point to an actual option for more people.