9:05 AM PT -- If you're the betting type, and the type who loves a long shot ... you might have just cashed in big time. Ladbrokes, an online betting site, had Archie odds set at 100/1. Congrats if you just came up.
And the Palace wants to make it clear ... his name is Archie, NOT Archibald.
BTW ... the middle name of Harrison is quite fitting. The root of the name is Henry's son, and Henry is Harry's actual birth name. So, there ya go.
In the days leading up to the big reveal, oddsmakers in the UK were taking bets on what names the couple might choose ... with Spencer a strong favorite. Spencer was the maiden name of Princess Diana, Harry's mother.
Other names heavily favored included the more traditional Alexander, James, Arthur and Philip.
Oddsmakers were uncertain if the couple would go with a traditional name ... or buck tradition and go their own way as they have in other ways. For now ... everyone waits. As we reported ... Meghan gave birth at 5:26 AM Monday, London time to a healthy baby boy weighing in at 7 lbs. 3 oz.
Harry announced the happy news, telling the media he was thrilled and in awe over what women go through during childbirth. He said they were still thinking about the name even though they had some extra time, and also ... he couldn't stop smiling.