Yes. Yes, you can.
You can use Gmail as your client email application for mailto tags when using the Google Chrome Browser. Access the following link from your Chrome browser to install the plugin:
Mailto: GMail
This will set your Chrome browser so that when using the Email Page option in Project Insight, it will launch Gmail instead of looking for a default email client application, such as Outlook. You must also have your user profile Preferences set to Use Email Client.