I believe that it uses specific PC PSO servers...well at least maybe for now. If someone can clarify this? I haven't played it much since I haven't had much time but as time progresses I'm sure it will allow PC users to play with DC, Gamecube users as well at least I hope.
I'm usually on as Kyosuke75 if anyone sees me say "hello"
Yes, the Network Trial is a PC ONLY server...tho all you Deramcast users enjoy PSO online while you still have it....I have heard that half of the servers will be closing down at the end of the month.......
According to an article I saw reposted on Usenet, all Dreamcast net-games will be free until the end of the year, at which point Sega will decide whether to continue supporting the games or pull the plug on them. But yeah, some of the DC PSO servers will be closed and replaced by GC servers.