I am currently creating a website for myself using Wordpress, WooCommerce and the Gravity Forms plugin to allow people to order canvas prints. The order process uses a multipage Gravity Form with a file upload on one page, however Gravity Forms does not provide any feedback whilst the file uploads. And as the files are usually a few megabytes this isn't good.
I need a way to show users their file is uploading and to wait. (Actual percentage progress bar preferred, but just a message or looping bar would be ok).
Based on the number of people on the Gravity Forms forums who are crying out for a better file upload function (multiple files, progress bars etc), if done as an addon plugin, this could easily be marketable also.