I think this a a headers issue in vibe?

But on Android (2.1, 2.2, .23, 4.0) phone and tablets we can not select a pdf from a vibe folder and download it or view it.
We can from an iphone/tablet

We have tried chrome, dolphin HD as well as the standard Android browser.

A sample Word 2k7 doc can either be "view'ed by selecting view or downloaded by selecting the file from Android.

Can anyone else confirm please