What makes the POWERMATE P5000 and POWERMATE X interesting is NEC's close integration with CyberLink's SoftDMA and Media Server applications. Instead of relying on the usual Windows Media Center tools, NEC media servers will feature CyberLink Media Server and has indicated that they will equip current and future desktops and notebooks with CyberLink SoftDMA, which will make all their PCs and notebooks compatible with their media servers in a private network setup, such as a home. Of course, the POWERMATE X server will also support standard UPnP as well as DLNA to connect with other devices like your XBOX 360.
This is still a very standard solution. The most interesting feature of using CyberLink Media Server and SoftDMA is access to the CyberLink Live service. CyberLink Live is a web service to extend your media network to the world. Instead of going through the hassle of setting up your very own Internet server, you can access your personal POWERMATE X content from this service, just as if you're connecting directly from your home network. Not only will CyberLink Live stream audio and video, you can access installed webcams, access documents and even watch live TV and cable channels remotely. As long as you've got your TV Tuner setup, you can basically 'share' your cable with others. The only downside is that you can only watch one channel at a time due to hardware limitations. Other media files aren't affected.
Do note that, the CyberLink SoftDMA, Media Server and CyberLink Live web service are retail products on their own, which you can use to setup your own media server service. With the NEC POWERMATE X and POWERMATE P5000, NEC and CyberLink have teamed up to offer a customized solution package that is fully enabled and ready-to-go.