Google has extended the features of the mobile Google Docs by giving “editing capabilities”:http://googlemobile.blogspot.com/2009/02/edit-google-docs-spreadsheets-from-your.html to spreadsheets stored in there.
bq. Last night, we launched new capabilities to Google Docs for your phone that allow you to add new rows, edit existing cells, sort by columns, and filter by terms. Now you don’t have to wait until you get to your computer to update a spreadsheet, whether it’s your expense tracker, time sheet, or your wine rating spreadsheet.
Though the screen real estate is already limited when you activate the keyboard, Google still managed to format the display of the spreadsheet, making it easily editable.
Hopefully, the editing feature is extended to Documents and as and when Apple decides to put in Cut & Paste, the iPhone can easily replace the laptop for the mobile workers.