Just sent below letter to MCM Electronics (R-Pi distributor in USA, part of Premier Farnell), in case anyone else is also confused:
Dear MCM Electronics:
I am writing in regards to your product 28-17733. There are two similar but different board-level cameras sold for the Raspberry Pi computer. One of them, released several months ago, is the “normal” camera, which has a green colored PCB. Just yesterday the Raspberry Pi foundation announced their distributors are now stocking, in addition, a different version called “Pi NoIR” which has no IR filter ( http://www.raspberrypi.org/archives/5128
). This newer version has black soldermask, but otherwise looks identical to the original version of the camera, which is also still sold.
The photo on your webpage http://www.mcmelectronics.com/product/28-17733
currently shows a board with black soldermask, so that is a Pi-NoIR version in the photo. However the text makes no mention of this distinction, so it is unclear which product is actually for sale under your part number 28-17733. I have previously ordered part 28-17733 from you and received the original (green soldermask) part (see for example MCM order# 263654 on 05/14/13), so I assume you haven’t changed it. But your product photo is confusing.
They fixed this to show the correct photo this morning. It seems that MCM is listing the Pi-NoIR as part 28-18030
but it is on backorder, expected in 37 days. Adafruit is also currently out of stock. For those lucky folks who actually have one, please use them and post your results for the rest of us!