Thank you for your post.
Bento is fairly simple, but you would still have to export your data to Bento 2.0v4 and then sync to Bento for iPhone.
There is a third-party application called FMTouch that puts FileMaker data on the iPhone. I have had no experience with it, and it is no way related to our company, but several users appear to like it. For more information, visit www.fmtouch.com.
Way late, I know, but thought I'd post anyway.
I'd love to get FMPro onto my iPhone but I won't buy Bento as I've already invested in FMPro. I won't buy FMTouch (yet) because it doesn't support a scrolling list view...and I need that for image databases.
So as a temporary work around to get my info onto the iPhone (sadly not editable or syncable) this what I did:
Created a Layout custom page sized for the iphone screen
Reduced the margins to zero (removing header and footer)
Selected Save/Send Records As... from the filemenu
Chose PDF as the output
Synched the resulting file with the free app Briefcase Lite
I have scrolling versions of my filemaker files. Of course I have to update on the laptop but at least the info can be carried with me.