Editing for Iphone - Sequence Settings (FCP 7)?

Hey all, Thanks in advance for any help.

I'm editing a video for use on the traditional iphone. It's basically a series of stills animated Ken Burns style with pans and zooms.

It's my first time editing for iphone (and for that matter editing stills). Can anyone tell me what sequence settings I should be using to I. keep render times down to a minimum and also II. to get the best quality export when I'm ready to export and compress?

I know the frame size (640x960) but that's about it. The source media are pgn files ranging in size and also resolution from 1283x1650 to 2408x3508.

So basically ... what sequence settings should I use? and should I think about converting the files in some way before bringing them into final cut?

Thanks,

Glen

See screen grab for my recommendations for Project config.
Export for "Apple Devices 720".
If going out for iPad or Apple TV, export for "Apple Devices 1080".

You'll want to scale those photos down a bit, also. Bring them closer to the 1280x1080 frame size you'll be working with.