All incorrect. PS3 as a Blu Ray is probably the best, its only lacking DTS-MA as a negative so far but other more expensive players have bigger issues. Not to mention PS3 has been great interms of software updates. Its also the best HD wireless streamer in practice due to compatibility and interface. I can use anything with it and it works.
It can't pass TruHD bitstreams, it has to decode and pass as LPCM, unfortunately, it uses the lower quality 16/48 version of this as well.. I suppose it's not that bad, but since new BR players offer all audio streams to be output as native or LPCM, you'd expect the 'best' BR player to offer this as well..
It is also stuck with 1080p24 video output for the time being, other BR players offer some up conversion of rates meaning people that don't have 1080/24 properly implemented (the vast majority) and so judder is experienced.. you'd expect the 'best' BR player to allow decent pulldown to occur and give people smooth playback.
Software update wise, all standalones are having new firmware released very regularly, and because all they have to concentrate on BR features/support, it's far more likely they will support compatibility issues and new features far quicker..
"Its also the best HD wireless streamer in practice" - now you are massively wide of the mark, it supports little codecs natively, and the XBar is the direst of any media device available, you clearly haven't used Media Portal/MCE/XBMC or any standalone streamer..
Installing Linux and using VLC for example leaves you with an even poorer interface, but it does play more formats, except of course to play a BR disk you need to boot back to the PS3 OS, and a lot of 'HD' H264 content in MKV's isn't fully supported in terms of VC-1 decoding and Audio track support..
Don't think I'm totally against the PS3, I have one, I watch BR's on it, and I am constantly fiddling in Linux with VLC and MPlayer amongst others, but having a HTPC with Media Portal, and use the 360 as an MCE device it just shows that the PS3 is not even close as a credible standalone media device that the whole family can use..