InlineContacts is an M&S Consulting-built application deployed to the Google Apps Marketplace.
InlineContacts allows you to manage (add/edit/delete) your contacts directly from your GMail web interface. InlineContacts gathers contact information from your email messages + your Google Apps address book and displays it below your email.
In addition to managing contact information, InlineContacts allows you to collaborate with your contact data. For example, you can create an event pre-populated with your contact information, find past messages from the contact, and quickly begin to merge duplicate contacts.