While Sanwa has been known as the default provider of arcade quality parts for most manufacturers, it seems that they may be planning to throw their hat into the ring themselves with their own arcade stick.
Shown at the Tokyo Game Show, the Sanwa "Seiki" or "Hope" for the PS3, at first seems quite large and rather ungainly - looking more like a shotgun case than an arcade stick. However there is a reason for this, unlock the stick's top panel (using 2 sets of keys, giving it a special feel, like arming the missiles on a nuclear submarine) and you'll notice that the large case allows for the storage of a complete set of parts inside - a complete set of buttons, button plugs, another stick as well as balltops.
The buttons themselves are Sanwa's new clear snap ins. This allows the buttons themselves to be lit up by a series of LEDs inside the case.
What Sanwa's plans are for this stick have yet to be revealed (at least to the English speaking public). While the concept is unique, the size and shape of the stick do make it a bit unweildy. The stick itself doesn't seem to be something meant to compete with offerings from HORI, MadCatz and soon Razer, so there's talk of it either being a demo kit or something targetted for for console rental shops.