A few months ago after listening to one of their calls I emailed rkrw asking why the stock wasn't a screaming buy - only problem was the market cap my system was showing was low by a factor of two for some reason (still haven't figured out why).
So using the correct market cap, the stock seems fairly fully priced given its stage of development.
I did buy some FRX about 6 months ago, so I do have a small indirect stake.