As i've stated before, i really believe that Google's looking to offer their own browser-based PC (past article here). And, to strengthen their browser suite, they announced today that they'll be launching a browser-based spreadsheet application
I for one, couldn't be happier about this. Quite often i've emailed around a spreadsheet for comments and discussion. To be able to share and solicit comments on it is a great thing. Let's just hope it delivers.