Playing in the wave

But with portal like applications, that provide extensive interfaces for the integration of gadgets, widgets, or applets (or whatever they are called tomorrow), there is a great new danger.
What used to be reliable, won't be in the future.
E-Mail is quite reliable. As soon as you received an E-Mail, you alone (or your company) are responsible for storing, archiving and retriving this specific piece of documented communication.
You delete it: it's gone.
But with gadget-stuffed portals, and a tool like google wave, there may be no reliability, or accountability. You include and use a gadget to enrich your communication, provide interactivity where there used to be an image or a long explanation.
But what if: the gadgets data provider (wherever he might be in the cloud) ceises to provide this service: your information is gone.
How can you, by yourself, archive or store or document, the information, included in an interactive gadget?
How far can you go, to use these enriched tools of communication in business processes?
Kinda scary.