Lightbulb [Q] App idea - need partner/developer/place to start

So I think I've come up with an idea for an app that could be huge! (like everyone's killer app idea!) But I can't code for android, nor iPhone - and yes this is huge enough to be cross platform.

Don't know where to begin.

The idea?:
Private for now

What I offer?:
The million $ idea ("may" involve chat app, possibly cloud storage, pretty sure telecoms will hate it
Entrepreneur mindset
My time

My concerns?:
Can't code
Discussing this and stealing it from me
Really no idea where to begin
No silicon Valley contacts

What I need?:
Possibly investor or angel
Worldwide patent

I truly think I'm on to something and with chat apps, social and cloud storage beings popular this could be huge $