Bit late but I checked my emails recently and Adobe sent me an email discussing the beta and giving me a link.
Direct DL: http://labsdownload.adobe.com/pub/labs/photoshopcs6/photoshopcs6_p1_win_032112.zip
Enjoy. Check on youtube for the sneek peaks if you're wary about downloading. Also, check a youtube channel iceflowstudios. He must have published at least 20 videos by now on PS CS6 showing off everything new. In addition, looks as if this could be final photoshop but I doubt it.