John,
> Does anyone have a way to run pg_dump from cron in a way that doesn't
> require someone to enter the password on every run? I get the following
> error even when the backup user has read permissions on all application
> databases.
You can use the .pgpass file in the backup owner's home directory:
*:5432:*:postgres:MyPassword
*:5432:*:xxxx:XsPassword
-- Gary Chambers