Google Takes Aim at Excel - New York Times

Google Takes Aim at Excel - New York Times: "Google executives said Monday that the spreadsheet program would make it possible for as many as 10 people to simultaneously edit a spreadsheet document online and chat about it using Google's instant messaging program.
The new service will be able to handle several hundred formulas used to manipulate data in Excel, but not more complex functions like macros, said Jonathan Rochelle, the Google Spreadsheets product manager. "

No charts, no macros; I wonder what it does for concurrent update detection and resolution...