Shortly after sending an email from Ruger's site, I received a reply from Ruger's CEO, Mike Fifer:
A 1911 of our high quality is a difficult firearm to build, and in spite of considerable capital spending on equipment, we have not been able to hit our daily production goal of 90 guns per day on two extended shifts. Instead, we are averaging somewhere between 50 and 60 guns per day. So far we have shipped more than 8,000 SR1911s.
In response to everyone's frustration (including our own employees, who want more SR1911s), I have committed an additional $3.3 million to acquire more equipment to try to double production. Many of those pieces of equipment are showing up now (I saw quite a few new pieces of equipment when I was in the Prescott factory last week), and I am hopeful they will be tooled up and running with additional, fully-trained employees by the first of the year.
So, there's hope for all of us who are waiting, just a matter of time and the SR1911 will show up at your LGS, or you will finally get notified from that online waiting list. I'll have to start saving money, because I already bought a SW1911 TRS!