I've been watching Joyent with interest for a while now, but I don't think I or my employer will be using their public cloud any time soon. Frankly, the pricing standard set by DigitalOcean a couple of years ago, and since followed by Linode (my and my employer's current favorite) and Vultr, is pretty hard to beat. I don't know how I'd justify 2x the price (not even counting bandwidth) when the performance of Linode is good enough. So I'll just continue to watch with interest. Now that SmartDataCenter is open source, maybe someone else will set up an SDC cloud with pricing that's competitive with DigitalOcean and the like. That would suck for Joyent though, so I shouldn't really wish for it.