Consult on iOS, Android and Windows Phone Development

General information for the business: App based start-up
Kind of development: New program from scratch
Description of requirements/functionality: I have been thinking about developing two apps, while my knowledge of app development is limited my technical understanding and competencies tell me they're both achievable possibilities.

Therefore, i need someone to help me better understand what's involved and what potential opportunities/pros and cons I should be aware of; such as pros and cons of logging in with social media accounts, use built in camera capabilities or use 3rd party solution.

You also assume some come back questions or clarification after wards on areas of the discussion into the price.

No idea how much this would cost so looking for hourly quotes.

If you're interested in taking on the job, we can discuss that too.

We will be expected to counter sign an NDA before details are shared.

I'd prefer to have a conversation with experienced developers for accuracy sake.

Would like to kick off this week.
Specific technologies required: iOS, Android mobile and Windows Phone technologies
Extra notes: We can discuss over phone, Skype or a coffee if you're local.