Hi,
Interesting review, although I'm a little disapointed Jigoshop didn't get a mentioned alongside WP eCommerce and Shopp as a free eCommerce solution which also has a number of compatible themes and extensions available...

@David - When it comes to security, obviously it's a priority for all of us, and I'm happy to chat more about what security features we might be implementng etc in the future.

@Matt - We've got all our documentation publicly available if that helps :)