Save email attachment [webOS 3.0] 5
This tip is only for devices running webOS 3.0 and higher
In webOS 1.0 or 2.0, you needed to rely on patches or other homebrew solution to save an attachment from an email. Luckily, webOS 3.0 now provides a very simple method to save any attachment that you receive, with just a tap of the finger. When an email comes in with an attachment, the first thing you need to do is load up the attachment by tapping on it. Once it has been loaded on to the device, the file will launch in Quick Office (or whatever app the fily type is registered to). Return to your email message, and you can now press-and-hold on any one of the attachments to get a pop-up menu that will allow you to open it up, save the one attachment, or save them all. Those attachments can then be found in the "downloads" folder on the USB portion the device.
If the file is one of the Quick Office-compatible file types, it will now show up in the documents listing when you open up the app. You can also open up a file manager app like Internalz, Internalz Pro or Gemini File Manager to rename the file, where you will find the file in the /media/internal/downloads directory.
Thanks to @PrdAmrican on twitter for this tip