First NVMe SSDs Announced - What's NVMe?

I recently attended the Intel Developer Forum (IDF) 2013 in San Francisco, CA, in order to follow-up on the progress of NVM Express (NVMe). While there, I attended an NVMe technical session and spent a large amount of time in the NVMe Pavilion discussing NVMe with most of the vendors there. NVMe has made good progress since last year (last year's comments), with the first NVMe SSD announced and a robust ecosystem developing to support this technology.