ok. thanks. Called Pam and here is some info:
1. Process is rolling - so once your OPUS goes complete (or you receive app complete email) your app will be on the review queue and you will know the status within 4 weeks.
2. Interview is optional. Campus interview welcome BUT phone interviews are INVITE ONLY so you cant self initiate that. If they feel you need interview they will tell you during the application review process - so basically if you are not coming to campus you are "all set"
3. you may see "interview" on the admission to do list - she said everybody has it and it doesnt reflect upon your application's completeness...