Galaxy has unveiled the world's first single-slot GeForce GTX260+ video card, the Galaxy GeForce GTX 260+ Razor Edition. The card measures only 14mm thick and is equipped with cooler that utilizes "Vapor Chamber" technology, which uses a special coolant-filled copper base that rests on the GPU and quickly spreads the heat into large surface area for dissipation. The card's aluminum encasing also helps in heat dispersion.
Galaxy has tweaked the enclosed card to reduce power consumption (and thus heat). It is based on a 55nm process with 216 stream processors, 896MB of GDDR3 memory across a 448-bit memory interface, has a core clock frequency of 576MHz, 999MHz memory, 1242MHz shader, supports DirectX 10 and 3-way SLI, and pulls power from two 6-pin PCI-E connectors.
I haven't been able to find any information about a price or availability. I've attempted to contact Galaxy and will update the post if I hear back. In the meantime, you stumble across this information feel free to clue us in via the comments.