First we had none and today we have two. Last weekend Elmor already published the work on extending the EVS's functionality with a DDR3 SPD R/W feature. This morning TiN (EVGA) and Cpt.Planet (Corsair) showed their idea of DIY SPD flashing. The device is a bit more elaborate than Elmorlabs EVC as it requires an additional DIMM adapter and a Raspberry Pi, plus of course the software. The main advantage is that everything is open-source as it's very clear what is needed to build your own device.
In addition to the open-source nature of the device it also has support for DDR4, which is a neat I suppose.
The device is not for sale, but all the documentation can be found at xdevs.com. Enjoy DIY'ing everyone!