New update....USCIS approval on 1/16/09

I called USCIS this afternoon. I was at wits end and really had to know what was going on. Afterall, 7-10 business days had come and gone, and I still had not received anything. According to the officer I spoke with, my I600 was approved on January 16, 2009. Because Monday was a holiday, it probably wasn't mailed out until Tuesday. It is sent by regular snail mail, so my figurations say I should have it by Friday the latest. So what does this mean? Not much LOL! But its a big chunk of the puzzle, which is always a good thing.