Are you talking about swing trading it or holding it? If you're going to swing trade, you might as well go with the charts.
I would never recommend that anyone hold this stock hoping for a long term gain for reasons I stated before. Have you given up your criteria that earnings are somewhat important?
If you really want to swing trade EDIG successfully, you should get in on the private e-mail lists, then you can know what the touts are pushing in private, with some of the longs buying because they believe it. The next best thing is to read every post on the agora board. When there's some real excitement going on about the latest hype and people are posting their "buys," that's a good time to sell.
Right now there is a hype campaign trying to link EDIG to some of the new products the Hewlett Packard is introducing. Hope springs eternal for some of these guys.