Many things to improve

Some things to improve:
Should be easy to configure, like if I have 5 years old (the most successful apps are easy like that)
Should have a profile page for your contacts
Should let you link your contacts with social networks (like facebook, g+) and import their pictures to feed the contact profile

Thinks I like on this app:
The idea of improve contacts actions based on gestures

A question:
Could this app be the best CONTACT MANAGER for ios in a few months/years?

Congratulations for your idea, i buy this App because i believe this could be one of the best.

dogasantos about Mingle: Action-Based Contacts, v1.0