I'm not sure I really expected a sale until after New Years because:
a) Version 1.0 doesn't do that much
b) No marketing yet besides some small AdWords tests.
c) I just noticed some bugs that could really put off new users
d) It's Christmas time, so no one is buying.
But on Christmas Eve someone bought the first copy. I'll take that as a promising sign given the above facts.
I'll be working hard all weekend to try to market the New Years Resolution angle and fix some of the small problems, and hopefully get out a major feature or two.