The demographics of Foursquare - gender split and by-state distribution

On 2nd November 2010 Foursquare visualised checkins at polling stations in the US.
I have taken these checkins - a total of 50,416, and the gender and by-state splits to show the overall US gender and by-state split.
In summary, nearly 60% of users are male, and nearly 50% live in just 6 states - California, New York, Pennsylvania, Florida, Illinois & Texas
Note - This is clearly an extrapolation - but I believe that it's the closest we've come to seeing the real gender and geographical split of Foursquare.  It may also give an indication of how digitally advanced different states are.

Gender:
58% male, 42% female

Split by state:
California 16%

New York 13%
Pennsylvania 5%
Florida 5%
Illinois 5%
Texas 5%
Georgia 4%
Ohio 4%
Michigan 4%
Virginia 4%
Wisconsin 3%
New Jersey 3%
Minnesota 3%
North Carolina 3%
Arizona 2%
Indiana 2%
Tennessee 2%
Washington DC 1%
Connecticut 1%
Iowa 1%
South Carolina 1%
Washington 1%
Colorado 1%
Kansas 1%
Kentucky 1%
Alabama 1%
Missouri 1%
Louisiana 1%
Oklahoma 1%
Nevada 1%
Nebraska 1%
Utah 1%
Arkensas 1%
New Hampshire 0%
Rhode Island 0%
Idaho 0%
Delaware 0%
Maine 0%
New Mexico 0%
Mississippi 0%
Oregon 0%
South Dakota 0%
West Virginia 0%
Alaska 0%
Vermont 0%
North Dakota 0%
Wyoming 0%
Montana 0%
Source:  Data taken from the 'Elections' visualisation on Foursquare, 2nd November 2010, showing how many had checked in to vote in each state.
Note - To repeat - This is clearly an extrapolation - but I believe that it's the closest we've come to seeing the real gender and geographical split of Foursquare. It may also give an indication of how digitally advanced different states are.