[rartichoke]

I think the problem with web versions of excel-like apps is the lack of trust when it comes to hosting your private information on the sites that would run them.

Do you really want to have your expense/profit reports, customer lists, etc. hosted on some app?

I don't even use Google spreadsheet because of this sole reason and I don't plan to switch. I would like to switch but yeah, I just don't trust private financial data in the hands of any service provider.

[krrrh]

This is a good point. Beyond the privacy concerns, there's the problem of not having any control over when the software disappears. One of the better general purpose web-based productivity apps was DabbleDB. I got a friend hooked on it and he invested a bunch of time basing many of his companies internal processes on it. They were subsequently acquired by Twitter and shut down the service.