“Acrylic” is the codename for a new professional design tool that brings together the richness of pixel-based painting and the flexibility of editable vector graphics for a more fluid and flexible creative workflow. With Acrylic you can create sophisticated designs and graphic elements for your on-screen, Web, and print projects.  
                                                                                                                                                              -Microsoft

Looks more like Expression, its Predecessor.

Cool one, i tried it, will be posting more later........ [Download]