It's surely worth more than the current share price, I get that the track record hasn't been great but since the change in strategy, the marketing has been superb and the product is everywhere now. I have spec tech stocks which are years away from profit (let alone revenue) with a similar market cap to GRB.
For any speculative buyers I'd say below 4cents is a great entry point and look for this to rebound up to 8c within the next 2 months; provided the quarterly confirms my positive outlook!
GRB Price at posting:
3.9¢ Sentiment: Buy Disclosure: Held