New rates come out tomorrow or Monday.. October's expired today. That said, October's rates were (this for an xDrive35i, not sure if the 50i was any different):
10k/year 61% residual, .00125 MF
12K/year 60% residual, .00125 MF
15k/year 58% residual, .00125 MF
There was also a $1000 owner loyalty credit and I believe a 1st payment credit up to $500.
From what I've been told, BMW is being very aggressive trying to pump volume for year-end to boost market share. November and December programs should get pretty aggressive, but that may or may not hold true for the F15, since it's new and demand is supposedly very high. I'm guessing we'll see a Holiday credit, but again, it may or may not apply to the F15.
As far as deals, there is another thread on here you can look through. But people seem to be reporting everywhere from $500 over invoice to almost full MSRP..
http://www.xbimmers.com/forums/showthread.php?t=894479