It would be great to have an openin - mozy option in email, so files could be sent to stash. I understand this is the not the most elegant way, but I assume your key exchange would prevent using webdav etc to save files from keynote, pages etc.
it is great to be able to get files to the ipad, but would be good for us content creators out there to have a way to get files to stash.
We completely agree with the use case you're suggesting. In fact, we just submitted v1.3 to Apple for approval in the App Store. Once approved, the update will allow you to use Open In from any other application, and send files to the Mozy app. Here's how it looks from Documents to Go on my iPhone. (It's similar on the iPad.)
Uploads still all go to a common "Mobile Uploads" folder for now. In a subsequent release, we will allow you to select the target folder in you Stash.