Solving problems before most people are even aware that they exist... sounds like an outstanding business model. FC must have noted that cooling was a major issue when he deployed thousands of blades. It will likely be something any large deployment will have to address. Having an in-hand solution puts you miles ahead of of those who deploy a farm and then find expansion difficult due to cooling issues. There is a practical limit to what one can accomplish with air cooling and that sets a cap on density, and thereby efficiency. This may be one of the best investments a company could pursue, with every major deployment as a customer.
I agree with what you're saying in principle, but I'm worried that liquid cooling is actually something allready well known. While if you wanted an ASIC some months ago ASICminer was the only one (or one of the few) able to supply you with one, if you want to use liquid cooling for your datacenter I think you can allready find many solutions on the market
