Just got word from my agency. Their China facilitator dropped off Meili's visa application to the USA consulate in Guangzhou. It takes 10 business days for the consulate to process it and produce the Article 5 letter. Looks like 8/16 for Article 5 pick-up!
I received an email today that we've been 'cabled' to Guangzhou. The actual date was 7/29/11. NVC also emailed the pdf letter to me. I sent this onto my agency. Hopefully, the Article 5 will be dropped off at the consulate this week.