Forms | Type: OtherPrepopulate Gravity Forms with Registered User Info

Merge tags:

{user:first_name}
{user:last_name}
{user:display_name}
{user:user_email}
{user:user_login}
{user:[meta_key]}

Reference Links

http://www.gravityhelp.com/forums/topic/forms-to-auto-populate-registered-user-fields

http://www.gravityhelp.com/Merge_Tags