[hakanu]

The spreadsheets are not open to world. They are restricted to the certain gmail accounts. Don't you think this is safe? Plus, what is the difference between storing in the spreadsheets or parse.com or loggly.com etc? in-house storing is cool but so costly and hard to analyze.

[teddyh]

No, this is not safe — Google still has access, and can give additional access to whoever compels them to do so.

This is, indeed, no different from other cloud-based solutions. In-house storage “costly”? Really? Well, what is security worth?