I just visited the savings bond site to purchase an I Bond and there was a note that any bonds purchased today may have a November issue date.I thought as long as the purchase was made in a given month,no matter how late in the month,the issue date would show that month.Any comments?

From http://www.savingsbonds.gov/sav/sbdfaq.htm :

Q: If I buy a bond at the end of the month, what issue date appears on the bond?
A: The issue date of your savings bond indicates the month and year the bond starts earning interest. It's printed in the upper right hand corner of the bond. Usually, if you buy a bond during the month of February 1999, the issue date is printed as "February 1999" on the bond. However, if you buy the bond at the end of the month, your bond's issue date may be the following month. For example, if you buy a bond on February 28, 1999, your bond's issue date will probably be March 1999. The savings bond issue date is determined by the date we receive funds from the credit card association. This usually happens quickly--within 1-2 business days--so it only affects end-of-month purchases.