I second that, this service looks good.. but atleast for now I'wont be using it.

Reason being: - Lot of believe in GMail that they will be there for years to come, and service will be available when we need it. - It not only contains notes / passwords which I send, it also have passwords / login info sent by various services. So anyways, I'll have to use it. - Gmail is a default tab always opened, why would I need another tab for a subset of task.

Anyways I think there will be many takers once seamless integration into email is done.