Hello Philip & Spencer,
Thank you for contacting us about BoldGrid functionality. Yes, since BoldGrid is powered by WordPress it includes the built-in tools. For example, you can allow user registration and set group Roles and Capabilities. There are many Google Map plugins already available for connecting to their API, but you can also custom code this yourself. The WordPress Codex is the best source for learning how to code with WordPress.
You can also see the Theme Requirements, as well as the Configuration and API Reference in the official BoldGrid Documentation page.
Thank you,
John-Paul