There seems to be some genuine interest in GTCB, so a dedicated board might work. However, managing one iHub board is a lot of work, so I probably wouldn’t want to take a lead role on a new board for GTCB.
Alternatively, we could discuss GTCB right here. This board has had threads on such diverse biotechs as ConjuChem, Transkeriotic, Matritech, Exact Sciences, Sepracor, Imclone, Vaso Active, and Genentech (to name just a few), and I can’t recall anyone complaining about an off-topic cacophony.
-- P.S. swampboots re TMTA: this post from Yahoo strikes me as an objective appraisal: