From Wikipedia: Containing all features from Home Basic, this edition will also support more advanced features aimed for the home market segment, such as HDTV support and DVD authoring. Extra premium games, mobile and tablet PC, network projector, touchscreen, and auxiliary display (via Windows SideShow) support, and a utility to schedule backups are also included. Home Premium supports 10 simultaneous peer network connections (compared to 5 in Home Basic). The version of Meeting Space included will also allow for interaction (in Home Basic, meetings may only be viewed). This edition is comparable to Windows XP Media Center Edition. 64-bit Home Premium will support up to 16 GB of physical memory, and will be supported until 2012.