Have you acquired Filemaker GO for the iPad?
I haven't, but will if necessary. It didn't look like it would work for this.
If you want to use Bento for this, I suggest posting this question in the Bento forum.
Filemaker GO allows you to access your filemaker Pro database from your iPad--which is one option for what you describe though I don't know off hand with filemaker 7 or not. If you want to explore what's possible with GO, post your question in the new Filemaker Go section.
You could also publish your filemaker database to the web and use iPad's web browser to access your database that way.
Actually I have File Maker 9 upon further inspection
Will repost in Filemaker Go, thanks for the suggestion, but do you know offhand if in Filemaker 9 I can create a database that allows only data entry? I remember something about a kiosk mode. Would I create a permissions list where a customer could only see one page?
You can limit access and features in many ways using Manage | Accounts & Privileges (Manage | Security in filemaker 11).
kiosk mode is an option if you are using filemaker advanced to develop the file.