It's all over the internet for $7.95 per 750 ml. bottle or $8.95 per 1 liter bottle. Netrition still has it but it's more expensive there and they don't have many flavors.

The flavors taste much better to me than DaVinci's. I'm a little still suspicious of erythritol, though. Erythritol and xylitol are supposed to not count because of their very low glycemic impact. After thinking about it, it occurs to me that fructose has a low glycemic impact too but turns out to be problematic for other reasons. So I'm not sure what to think.