More details will be released tomorrow w/ a manager I'm assuming. In terms of server specs I'm testing with this: Intel(R) Xeon(R) CPU D-1541 @ 2.10GHz, 2x 16384MB, 2 x 2000 GB.
Once you purchase a server or host a server on your own Windows/Linux box the server comes with a private key which can be used to link multiple servers together.
Looks like this:" Atlas Cluster Shared Secret: 30ce79df-f8c2-466c-b89c-7301aa313b21"
Yes, that's exactly how this works. In terms of hosting your own server this looks very complicated so doing some mucking around in a Windows environement and will try to throw together a tutorial for temporary use.