No, they just used the same name to confuse people! Such is corporate branding; it has a web interface, as well as pop3 (no imap though, apparently: I guess that would be following too many standards for Microsoft's liking...)
Grabbed myself a couple of addresses there before all the good ones went. Already found that they have a problem with their SmartScreen spam filter creating false positives; I think I've narrowed it down to them blacklisting the sending IP address since it seems they don't use the usual xBL lookup tables: again, Microsoft and standards, I guess. Even if I can sort out my own messages so they stop being flagged as spam, I'm concerned about what else may go missing, so I'm not sure I'll be an enthusiastic user of the service (besides which, I use my own domain names anyway.)