Hey Jim,

I would think that just means the visa application is processed and ready for somebody to decide yay or nay over it, and that everything is complete and somebody went over it and is happy everything is there..

Though as I have read here many times, visas can take days, weeks or months before a decision is made. And I know that until you get that confirmation you will be climbing the walls waiting for it

So, I wish you good luck with the application and hope your wife is with you in the UK asap