Got my Galaxy S today and spent most of the day failing to get any sort of stable DLNA playback to the Phone from multiple DLNA servers. Like most people on here, having lots of problems with "usupported file format" messages when attempting to play avi and mkv containers, with various codecs (mostly x264 and mpeg4). All these files play without issue if i transfer to the phone, but will not stream from DLNA server. The only one that works sporadically is Twonkymedia Server, but allshare keeps losing access to it for some reason (as well as my Win 7 media server), sometimes all, sometimes only 1 or 2. All in all a thoroughly dissapoining start to my first android phone. It looks like a combination of issues with Allshare, and or the DLNA implementation on the Phone.I have multiple media clients (xtreamer, xbox360,ps3, Eva8000 and Sumvision MKV) all of which play media from my win7 media servers, twonkymedia and a Thecus NAS device, and all through the same Network configuration. So it has to be an issue with the implementation on the phone :-S. Going to see what improvements if any 2.2 brings on this front.