Just talked to a few other people and they said -those who preorder get a guaranteed life-time price of $10/month, regardless of whether we raise the price for everyone else.

After the beta: we haven't decided on a final pricing system. We're shooting around ideas of doing a tier system.

And about running your own learntomod server:

At this stage we aren't letting people run their own learntomod server, the only exception being 3rd party hosting companies that want to make it available to their users.

Thanks for the info. I'll admit that I probably wouldn't subscribe to such a service. If it was a fixed price for the software I would definitely buy it for my kids.