Re: Stop the Press...
First, Hadoop isn't irrelevant.
But anyone who's done the TCO of owning an appliance... its a joke. Then there's the logistics since Teradata is tier 1 and tier 2 support. Not Cloudera nor Hortonworks. Not to mention that Teradata also has a deal with MapR.
Teradata, SAS, IBM, Oracle... all trying to make legacy systems relevant. (Which most still are...)
In terms of vendors... we're waiting to see what happens during the Cloudera and Hortonworks battle.
Then we may see a legacy vendor buy out the winner and/or MapR. Of course there's Databricks and Typesafe now starting to pop up on people's radar. My money is on Typesafe getting acquired first.