All I know is that I'm at the front of the line, or almost at the front of the line, for the one I ordered on 1/24, and as soon as I get the shipping confirmation, I'll post it here.
Meanwhile, the rev. 3 Single I got last week is mining along happily in my 90 degree "mining office", without the front LED blinking.
I'd be interested in knowing when they ship your Jan 24 unit. They were shipping like gangbusters a week or two ago, but nothing for a while now. I'm not sure if they are making much headway yet in reducing their backlog or are merely 'not falling further behind'.
Do you happen to be running your Single with cgminer? If so, can you report the temperature it is reading? Some of the screenshots for BFL's upcoming 'EasyMiner' show temperatures in the 50's and 60's (Celsius) but who knows what the ambient temperatures were. I've heard elsewhere that throttling (front LED blinking) occurs around 75C so I'm interested in knowing how close your Single is to that point.