Requirements: Android OS
Price: US$1.50
Overview: A small, on-demand app that will save any Gmail attachment to the SD card and view it from there.
HOW: Preview the attachment in the Gmail app.
Also works with Email app on older phones.
Browse Folder app not included, but not required.

Reads your email to get the file name; CANNOT broadcast your email contents anyway.
What's in this version:
Updated for Android 3.0