My hesitation in signing up for any of these unifying products is the potential lock in. If I start using your service and eventually have dozens of sites directed through you, what happens when the product disappears?

My question is therefore how do you plan to fund this indefinitely if it is "Just Free, Forever" and is unlimited? You say it is part of promoting your brand, but it looks like that brand (or at least the domain) has been around for less than a year, so not much history. If it isn't you company's main product, what is to stop you from deciding the costs of providing this becomes too expensive for the promotion it is giving you?