Dear Lily, We're always working on getting better
border
data, but because
border data is a sensitive issue, we want to make sure this data comes from an official source. If you can give us a detailed list, with coordinates and/or screenshots, of where the borders are inaccurate, we will work towards incorporating them.
Please also see this Help Center topic for more information on why we lock
country borders to editing:
http://maps.google.com/support/bin/answer.py?hl=en&answer=157161
Thanks & Regards,
Nadeem.