Just spoke to a customer rep. Odd lots were "turned off" all day today, and will be permanently disabled during the first quarter of 2007, probably around Feb.
I love IB, but my money managment scheme requires the use of odd lots. I hope they don't go through with this.
While I don't have a problem with not being allowed to trade odd lots, it is extremely annoying when I enter a 500 shr order and get filled on 450, and then the rest of the order gets kicked out because it is an odd lot.