No, tilde is its own thing. Resembles Reddit in the beginning, promotes a few long and deep conversations instead of a lot and short comments. It’s interesting but their philosophy makes growth really slow (by choice) and the serious nature of most of the threads tends to turn a lot of people off (it’s not very fun most of the time). I like it but it’s not Reddit nor is trying to be.

Wasn’t that the approach of Firefox OS? Not sure how successful this will be but I’m glad somebody is trying it. If webapps were a bit more ubiquitous, I could see this being a good alternative to something like ChromeOS