There is even Si-Ware FTIR MEMS sensor. It is quite pricey (more then 1K USD) and resolution is not that great, but pricey will drop eventually and it might be good enough for some applications.
Not shanzhaied, but another alternative spectrum sensor for VIS/NIR(390nm - 1000nm) is nanolambda NSP32. www.nanolambda.net
I checked datasheet and resolution is something like 25nm, not that great for most common application. Those Hamamatsu micro-heads are about 14nm (which is still not good), commercial benchtop instruments around 4nm.