As far as dilution goes, I have not kept track of the share count, but suspect they may have had to issue some shares to fund their expansion activities in the past. I seem to recall a private placement a couple years back, too. However, I do not think there has been heavy dilution.
Stevia, their sugar substitute product, is going to be huge. The past couple years have focused on production capactity expansion, and I think 2008 is finally going to be a breakout year for generating higher revenues.
Their recent PR suggests the expansion into the U.S., which begain last summer, is progressing well.