Originally Posted by
zzffnn 
Yes, I have success!!
I have used (all on battery here):
Patriot Gauntlet Node (portable battery-powered NAS) -> SAMBA streaming -> AcePlayer Pro app -> iPhone 3GS w/ IOS 5.
This is the portable NAS Patriot Gauntlet Node (PGN), whose size is a little bigger than Objective2 amp or HM801:

The above setting can (pros):
1) store and play up to 2TB of flac
2) output digital (via Pure i20 coax/optical) to an external DAC
3) stream 24 bit / 96 kHz flac songs (the largest flac I tried was 172mb in size and 3058 kbps). But I am not sure if down-sampling occurs during playback.
4) perform reasonably like an iTouch minus album art (can do auto next, next/previous song, fast forward/rewind, background play with screen off).
5) display all album structures correctly (including sub folders).
The cons/bad:
1) no album art
2) no gapleess playback. Gap is 1.5 - 3 seconds long depending on the size/bitrate of flac. Gap is longer than Rockboxed Clip during playback.
3) start-up time is 2 minutes in total. The NAS takes about 40 sec to boot to NAS mode, then you may need to set up bridge mode using the Gauntlet Connect app (if you want streaming music and internet at the same time on your iPhone). Without setting up bridge mode, PGN still works as a music/file server (for this it only takes 1.5 min from powering on to playing a song).
4) when screen is off, iPhone 3GS (IOS 5) will stop playing, so screen has to stay on. Although the app can run in the background w/o problem.
5) There is slight/discrete noise produced during screen activities (e.g., scrolling down a long page). High resolution playback seems to be affected more.
Additional note:
1) I have tried GoodPlayer and OPlayer as well. GoodPlayer did not work. OPlayer is tooooo slow (gap is longer, although it shows album arts).
2) You can format the hard drive in Patriot Gauntlet Node (PGN) as Fat32 to allow compatibility between Mac and PC.
3) The hard drive you use for PGN has to be a laptop type 2.5'' that is no ticker than 9mm.
4) Use "10.10.10.254" as the address for PGN and set up account name and password in PGN's Gauntlet Connect app.
5) The PGN works as a files server as well. The Gauntlet Connect app works with all my doc, pdf, xls, ppt or jpg files.
6) iPhone 3GS with IOS 4.0.1 also works with AcePlayer. But non-music file sharing is not available though the Gauntlet Connect app (which requires >= IOS 4.3).
I have updated the title of the thread and post the above details at post #2 on page 1.