So, the next release of libferris will include support for mounting google spreadsheets. This works right through to the file manager now. You can mount a spreadsheet as a filesystem and edit it with ego. Changes to cell a written to google, any formulas that are updated appear in the file manager right away, and of course if you are viewing the worksheet in a web browser its updated too.
I'm looking forward to compiling the latest ferris for maemo so that you can edit stuff on the tablet and have it change on your desktop automatically ;)
$ echo 5 | ferris-redirect --ea b $SPREAD/9
$ echo 23 | ferris-redirect --ea c $SPREAD/9
$ echo -n "=sum(B9,C9)" | ferris-redirect --ea d $SPREAD/9
$ fcat -a d $SPREAD/9
And of course, if you use the first row for headings...
$ echo -n result | ferris-redirect --ea d $SPREAD/1
$ fcat -a result $SPREAD/9