The QS1 will be showing up in the new APEX M800 keyboard, essentially giving it the strength and durability of a mechanical keyboard with the feel of a traditional membrane set of keys. The M800 has all the standard features you'd expect from a SteelSeries keyboard: macro support, anti-ghosting with 256-key rollover, full RGB LED lighting and per-key programmable lighting effects.
The M800 itself should be available sometime in the next few months, likely at a price point of $199 MSRP, but we wouldn't be surprised to see the QS1 switch make its way into a number of other SteelSeries keyboards in the future as well.