i don't know about SF IV ill have to trywhen it comes out. Im assuming it will because, yes it does have a USB connection. They buttons and joysticks are linked to the keyboard so i would probably just have to change the configuration for it to work. (for example: button one is A button two is B etc...)
hey man looks like your off to a good start!!! that is one of my next projects is a twin stick!!! i noticed in another post that you used a keyboard and from my knowledge that can be difficult but the plus side you dont need to spend as much cash!!!! i build ps3 sticks so i hack controllers and use them for the pcb just as you did with a keybord. if you have a ps3 also you could go this route......
Toodles Cthulhu PC/PS3 Board
Assembled Cthulhu PC/PS3 Board. The assembled Cthulhu board is the first completely solderless board for your arcade stick. Every connection to buttons or directions screw in directly to the side of the board, so installation requires nothing more than a screwdriver. The Cthulhu board works on any PC (including Mac, Windows Vista/XP/2K/98, and Linux) as well as Playstation 3 systems INCLUDING full backwards compatability with PS2 and PS1 games on all Playstation 3 models that support BC games; all without any drivers to install.
Features include: - 20 screw terminals for connecting all of the wires going to your buttons and directions, including a VCC line to power your Perfect360, Sanwa Flash, or Suzo Inductive powered sticks, and/or various LED modifications (not includied), and four connected Ground terminals to make connecting your ground loops super easy and clean.
- USB 'B' jack so you can plug in a standard USB cable of any length or color to match your stick.
- Separate connection points for all power lines and signals to make installation along side a common ground Xbox360 pad as painless as possible. Please be aware, this is still a very difficult modification to do for any board, but the Cthulhu makes it as painless as possible.
-Four mounting holes at corners for easy installation inside your stick.
-Ability to make the Start and Select buttons activate the PS3 in game menu, so you have one less button to install in your stick.
$40.00
you can get it unassembled for 20.00 usd and put it togeather your self and save a few bucks(and if you can hack a keybord you can put this thing togeather ur self)
this can be found here www.lizardlick.com/pages/boards.shtml the down side to it is if your building a twin like you have done u will have 2 usb cables but you can wire them so the cable will disconnect from your cabinet
and on another note check out this site many,many custom sticks here very good ideas on this site....