Office 2010 Preview Hits P2P Sites
Leaked copies of the Technical Preview have reached P2P networks. Although the first information I received on this were from one site and one set of torrent links (remember that Office 2010 will come in 32-bit and 64-bit flavors), its hit more reputable (we know, we know, the RIAA would laugh over this nomenclature) sites such as Mininova as well.

Of course, any downloading of this software is at your own risk, and not just legal risk. Recently, some Windows 7 RC images which were leaked prior to public availability were infected with malware.
ZDNet has a slideshow of screenshots if you want to just look, not touch, here.