According to the announcement I saw, this free application displays Open Document Format (ODF) contents on iOS (iPAD/iPhone/iTouch) and Android phones and tablets. The viewer can display text documents, presentations, and spreadsheets (files in ODF version 1.2 format with .odp, .odt and .ods extensions) created by Lotus Symphony, OpenOffice.org, LibreOffice, or other applications that support ODF. Note that it is a viewer only; documents can not be edited or saved.
You can browse files loaded to your devices and open files directly from a web link. You can also connect the viewer to a projector or monitor to display the content if you have a video-out connector.
I haven’t tried this yet (I’ve just downloaded it now), so I can’t say anything about it from personal experience, but it certainly looks potentially very useful for some of what I do.