EMC has taken its Mozy and Pi holdings – Pi being the stealth-mode mystery start-up it bought to acquire ex-Microsoft kingpin Paul Maritz before it fired Diane Greene and put him in charge of VMware – and Mozy being its year-old $76 million online consumer backup acquisition – and put them in a new cloud concern called Decho Corporation.

Decho is supposed to stand for a people’s “digital echo.”

One’s digital echo is supposed to be all the personal information otherwise stored in albums, boxes and filing cabinets – such as financial records, personal documents, family photos and videos, portfolios of professional work and correspondence.

EMC suggests this untidy mess, now measured in hundreds of billions of gigabytes, is scattered about on different computers, devices and web sites and according to whomever measures such things will grow at almost 60% a year presumably until the twelfth of never.

Being practically irreplaceable and passed along from generation to generation, it needs a home and that’s where Decho comes in.

The only service it’s willing to talk about now is the existing Mozy bachup, which is supposed to have 900,000 users and 25,000 business customers and has 10 petabytes of data in its vault.