Awesome work, I am really fan!
Still, I would have a suggestion for Packal's workflows versioning.
Since such popular workflows as Evernote from Carlos Alberto Sztoltz are not up to date (8.7 versus 8.0 on Packal.org), the end user may unfortunately doubt about Packal Updater's accuracy.
To maintain you database up to date, it could be really helpful to give both developers and end users the ability to report/submit a new version directly from a workflow's "View" page on Packal.org.
I believe a lot of users as me would be happy to help you with this "version release centralization" issue and free a bit of your time