Stage 1 - create, modify or download files,
with the applications you are used to, at work or leisure;
Stage 2 - "grab" your files with your hand:
drag and drop the desired file names in OSpace;
only once for each file.
Stage 3 - open your hand wherever you are:
click the files at hand: they are up-to-date;
to do what you want: modify again, show to a friend or just enjoy.