New update:
Still used several times daily. Stable and if I could only have one app on my devices it would be Files Pro. Fantastic job!!
New update:
Still the most useful app, and I still use Files Pro daily on my 4S and 3GS on iOS 5.1.1
Worth every cent, Files is stable, fast, and allows file transfer to and from iPhone. Files also has in app viewing of PDF, EXCEL, WORD, HTML, JPG, and other common files, along with the ability to download and open web files, Files sets the bar high for other apps to strive for.
This was my first paid app, and my most used app.
TITNTUFF about Files Pro : Document Viewer, v2.0.6