Stop me if you've heard this one before: Hewlett-Packard released new "converged systems" on Monday that aim to get customers up and running quickly with virtualized applications and big-data analytics. If it sounds familiar, it should: HP released similar products earlier this year and in 2011, but it's mothballing those and starting again with new systems that it says are more tightly integrated, allowing customers to purchase and deploy them in 20 days.