my app was complete sometime around aug 20th. that's when my last LOR was received. i never got a "complete" notice, but i know they were waiting on the LOR and that's when my delivery confirmation said the pack arrived in new haven.
hope this helps!
(i was such a geek, i yelped and jumped around my living room when i got the email. yale is one of my dream/reach schools)
my yale app was complete on august 27th, according to their status page. btw, be careful with the email! it was in my junk mail folder today...glad i finally checked that thing, because it's always just full of junk mail crap that uses up space on my hotmail account. spammers should be sent to prison or something...they are truly the lowest form of life.