In IPP 7.0 beta, libraries naming convention has changed. Mainly,
the suffix "em64t" was removed from libraries
the dispatcher libraries have the same names as IA32 and Intel64
the single threaded libraries have suffix "_l" for all architectures; the multi threaded libraries have suffix "_t" for all architectures.
In this beta release, no emerged and merged libraries. It means both libraries were joined into single libraries.
To select right libraries needed by your application, refer to - http://software.intel.com/en-us/articles/ipp-70-beta-selecting-the-intelr-ipp-libraries-needed-by-your-application/
To download and get more information about IPP 7.0 Beta visit - IPP 7.0 beta program home page