The Teradata acquisition of Aster Data has now closed.  Teradata is positioning Aster Data as very complementary.  You can get more information at http://www.teradata.com/t/News-Releases/2011/Teradata-Completes-Acquisition-of-Aster-Data/.  The press release says "Teradata will offer the Aster Data solution as a stand-alone software solution, as well as a component of the Teradata Integrated Analytics portfolio, to store and process data. It will include pre-packaged analytics functions and tools for rapid analytics development."  The press release also has a link to a YouTube video of Scott Gnau who is Teradata's Chief Development Officer.  It is interesting how Scott positions "big data" (which Aster Data is good at) and "lots of data" (which Teradata is good at).  Worth watching.