Is there ANY indication that PGS/SUP subtitles will ever be supported for MKV?

I’ve just bought this instead:

http://usb.brando.com/hi-media-hd600b-full-hd-network-media-player_p02286c035d015.html

Obviously it’s not a top name like WD, Boxee etc., but it specifies that it does everything I need it to do. Interface is a little ugly, but these generic electronics can usually be hacked and themed with no problem. Built-in Wireless N, USB 3.0, Blu-Ray subtitle support, DTS-HD MA.

Also has a web browser, which is interesting and I’ll be keen to see whether it flies under the radar of Hulu when it comes to representing itself as a media player or PC.

I’m happy with my Roku XDS for internet services, so I’m done trying to find a true all-in-one for now.  If this thing can play my rips without compromise, then that’s me happy.