@Amon Amarth (Great Band BTW)
I use SoftTH with a PLP setup and Borderlands is super fun in superwide!
Yes, Borderlands has some nasty blemishes, but its still completely payable IMO.
Borderlands menus are zoomed, but there is a description for every menu item that shows up on the right side of the menu, so I can navigate just fine. Well, fine enough. =)
The HUD elements are maybe zoomed, I never paid attantion, but they are all onscreen and readable so that's fine.
The gun is larger than it should be, but again, I can live with it. =) The game IS all about guns after all!
The in game blemishes are: sprint and driving FOV are bad, but still playable. I use 130* FOV with the Config tool you can make it work. Flawless widescreen would work better, but I dont have a STEAM copy.
Here is a working config tool download llink.