Good morning, gentlemen. I am quoting this from the Namco Bandai Forums:

"""

Hello
To be honest, I'm finding it surprising that Namco Bandai has not decided to announce the PC version of this - undoubtedly - sure to be a wonderful game, for a couple of reasons...
- cRPGs and action-cRPGs are extremely popular on the platform, for the latest examples please look at Risen or the Witcher, the latter of which sold over 1.5 million units, being a PC only game.
- Namco is the publisher of The Witcher 2, so you they obviously know the demand for such games is there
- PC gamers have a much higher tolerance for hard, unforgiving games, as a matter of fact, many RPG franchises on PC tend to be difficult and unforgiving - Gothic series, for example.

Overall, I feel like not releasing a PC version is a wasted opportunity for a lot of additional sales, which is a shame, because Demon's Souls was great and Dark Souls - being multiplatform - ought to include the PC...

It's a shame Japanese developers are so not used to taking advantage of the PC platform, though From Software tried to enter the market with outsourcing the PC version of Ninja Blade.


UPDATE - January 7, 2012 :
Please check the overwhelming response, the internet has exploded, you have a potential bestseller on your hands. A few examples:

http://petitionbureau.org/DarkSoulsForPC
20.000 signatures in just under 18 hours, currently over 32.000 signatures (!!!) (during 1 day).

http://www.youtube.com/watch?v=OUXw86Vn8ko&feature=g-u&context=G206e474FUAAAAAAAAAA
A great youtube link to a very popular show by TotalBiscuit with a lot of arguments made why Dark Souls is begging for a PC version
http://www.rockpapershotgun.com/2012/01/06/the-quest-for-dark-souls-on-pc/#comment-page-8
http://www.neogaf.com/forum/showthread.php?t=457969
http://www.reddit.com/r/gaming/comments/o5cw1/the_quest_for_dark_souls_on_pc/
3 links to huge threads on very popular sites supporting the cause with record-breaking number of replies.
http://i.imgur.com/5MqCo.png
Stats pertaining to this thread on these very forums.

More gaming media coverage with enthusiathic comments:
http://www.eurogamer.net/articles/2012-01-06-online-movement-for-dark-souls-pc-port-gathers-pace
http://www.destructoid.com/thousands-show-support-for-a-pc-version-of-dark-souls-219187.phtml
http://www.gamebanshee.com/news/106312-a-petition-to-bring-dark-souls-to-pc.html
http://uk.pc.ign.com/articles/121/1216035p1.html
http://www.gamestar.de/news/pc/2563581/dark_souls.html
http://www.gameinformer.com/b/news/archive/2012/01/06/would-you-play-dark-souls-on-pc.aspx

"""

The source is: http://forums.namcobandaigames.eu/showthread.php?t=96407

We are also requesting gaming websites to cover this. Can some user give this message to any member of the GameSpot Staff?

Regards.