Contact: email@example.com over XMPP or firstname.lastname@example.org via mail.
Location: Madrid, MA, España
Privacy: No more information is collected and stored than what is absolutely necessary. Rosters, vcards, offline messages, and so forth. If you delete your account all of them will get purged. There are no logs.
Uptime: As much as possible. No guarantees.
Domains: Pick one of the following: 0wx.es, 0wx.org, 0wx.eu
Register: Connect with any XMPP-enabled IM-client and just create your own account.