Everybody attending WES should be getting a download link by email. It even has a WES guide built into the RSS reader. One of the main things that is hard to describe are the iPod like swish you will see when you go between menus. Looks really hot!
The public beta of Project Tango with begin in June but there will be a private beta program will begin just after WES in MAY, and will start to showcase more of the services planned for Viigo than are made available in the preview release. The private beta volunteers will be getting the latest and hottest features about a month before the public betas so I would highly recommend signing up for the Beta program at this link. Who knows you may get accepted.
Sadly some of the hottest features are not available in this WES version but they are coming soon. Check out the next article with screenshots of the new application. Sadly Podcasts and Audio are not supported in this version. All you will get are RSS, WES 208 Guide, Weather, and Sports.