Got mine tonight...
Couple of thoughts after playing around with it for a little bit.
-Build quality seems very good.
-Its pretty quiet, even with the fan, its certainly not any louder than the fan in my Samsung DLP, so for me its essentially silent. Of course I'm 11' away so YMMV.
-Will not see any of my .iso or .mkv when using the UPnP feature, but sees all when using the "NET" feature (SMB share).
-Handles DVD .iso very well, menu functionality is retained for those that have it.
-Will NOT play an HD DVD .iso, so I'm guessing no go on Blu Ray also, but can't confirm yet.
-So far I have not been able to get it to output multi channel sound for any files with either AAC, or WMA pro audio. Doesn't seem to matter if I use "HDMI RAW" or "HDMI LPCM", I get 2ch PCM either way, I'm using an Onkyo 606.
-Plays my .m4v movies I have for my PSP.
-MKV's with either AC3 or DTS audio play great, pass through audio for both is good.
Maybe one of you, or the Patriot rep can comment on the AAC and WMA audio issue.....
Edit: Looks like the AAC and WMA Pro audi problems were due to HDMI handshaking issues. I rebooted the unit and switched back and forth between inputs on my AVR and now I am getting 5.1 MPCM from both sources, so very good news!