Never rely on anyones API, building something with API is mashup/side-project not a startup/company.
I think a better statement is "Never rely on anyone's API unless you have a contractual agreement and SLA in place, and a backup plan for if/when the API goes away; building something on an API otherwise is a mashup/side-project not a startup/company."
I think a better statement is "Never rely on anyone's API unless you have a contractual agreement and SLA in place, and a backup plan for if/when the API goes away; building something on an API otherwise is a mashup/side-project not a startup/company."