The issue when it comes to FLAC and other Codec support is in the Mediatek chipset. Mediatek has provided code for MP3 and WMA support, along with various other Codecs for video and audio support, but they have not provided it for FLAC, Apple Lossless, or anything of that nature. Oppo is dependant on Mediatek to write some of that code, so if Oppo could add that to their player, they would.
I have the Oppo and while I have used it to stream videos from my NAS (TV episode DVD's ripped to x.264 with AC3 audio in an MKV container, and they're perfect), I find that audio is harder to navigate with an on-screen remote and no keyboard. If Oppo was going to allow an input on their future Blu-ray players, I'd prefer coaxial or optical so I could use a Squeezebox, or Sonos, or other audio device that has a better interface.
I have the Oppo and while I have used it to stream videos from my NAS (TV episode DVD's ripped to x.264 with AC3 audio in an MKV container, and they're perfect), I find that audio is harder to navigate with an on-screen remote and no keyboard. If Oppo was going to allow an input on their future Blu-ray players, I'd prefer coaxial or optical so I could use a Squeezebox, or Sonos, or other audio device that has a better interface.