In various other scripts like Drupal and Joomla, when dealing with custom fields, one of the field types the admin can choose from (like text, single select menu, multiple select menu, checkbox, etc) is File Upload, with the ability to define file types and size limits. It's pretty similar to attachments I suppose. This functionality would be pretty useful in profile fields and resource fields, allowing users to upload individual files like a logo, for example, that is tied to that profile or that resource - I have a few other ideas where I am planning to use these field types. I realize there are resource icons, but that feature obviously doesn't give you the same flexibility a file upload field would have. File Upload fields would also open the door to being able to replicate some of the vB plugins that haven't been ported to XF, like DTO Vendor Tools, which has a built-in file upload field for vendor logos. It's one of the things I am trying to use the Resource Manager for, and file upload fields are one of the last pieces to the puzzle.