I'm curious: for Xero and its ilk, what are the terms of their escrow system, or whatever process they have in place if they fail (permanently or temporarily, and for whatever reason - financial, technical, legal), so that customers can have access to their data?
This is prompted in part by this statement on the Xero site: You don't need to back up your data in Xero because we have strict security and backup procedures in place.
For those of you with clients using such online services: what measures do you have in place to protect you from any comeback/fallout from service provider problems, and what are your clients' views on this?