So they're going to launch a mainnet? Will that really be a 'mainnet' testnet? FAQ #5 gives the idea that no "mainnet" can exist until someone else put it in place. Wow, I'm feeling really out of touch with the matter.
block.one is building the EOS.IO Software but it will not configure and/or launch any public blockchain platform adopting the open source EOS.IO Software (the “EOS Platform”). Any launch of an EOS Platform will occur by members of the community unrelated to block.one.
You are right! It is like another testnet but it is Dawn 3.0 which is more closer to a beta than the public alpha we are currently in. See this post by the team: https://steemit.com/eos/@eosio/dawn-3-0-alpha-announcement
Slowly but surely I'm getting up to speed on this. Thanks!