If all of the Perl6 and Parrot teams' ambitions come to fruition, you'll be able to put together this statement to market it all by:

Perl6 is a clean, modern, multi-paradigm language which allows Perl, Python, Ruby, Lisp, Lua, TCL, and PHP programmers to share code and work together while providing good runtime performance.

Your second marketing run-on could be this:

It offers clean macros, multimethod dispatch, vector operations, lazy evaluation, dynamic typing with optional static type checking, strong OO support, Just-in-Time compilation, and a virtual machine optimized for dynamic languages while borrowing a mostly familiar syntax from the tried-and-true Perl5.