21:9 monitor by LG

http://www.reghardware.com/2012/08/31/lg_stretches_monitor_range_lg_ea93_ea83_21_9_monitors/

2560 x 1080 resolution, 29".

Pity there's no pricing details or release date yet.

In size, it would be a decent upgrade from my 19" CRT:

http://displaywars.com/19-inch-4x3-vs-29-inch-21x9

(I've stuck with a CRT cause they are better than LCD, especially for games. I'm not a fan of 16:9 but when it comes to 21:9 I'm interested.)

This article says it has a 5 ms grey-to-grey (GTG) response time:
http://www.techradar.com/news/computing-components/peripherals/lgs-ea93-monitor-offers-cinematic-219-aspect-ratio-1094183
I've been told that 5 ms is too slow for games but I'm not sure how it being GTG affects that.

No, Philips have stopped making thiers.
http://www.theverge.com/2012/8/28/3273716/philips-cinema-21-9-tvs-discontinued
The Philips ones didn't accept input from a PC or anything at that aspect ratio, though, and their TV tuner wasn't even an HD one.