This list fron the bottom of a dotgnu web services page gives an idea of the scope of applications they think will answer the needs and uses of .NET:
- Online identity management.
- Names, nickname, birthdays, anniversaries, pictures, video clips etc.
- Address book.
- Rendez-vous facilities, net meetings, conferencing, gatherings etc.
- Notifications, alerts management and intelligent routing.
- Inbox items, interacting seamlessly with existing mail systems, voice mail and SMS engines.
- Project, time and task management.
- Document storage and virtual "hard drives".
- Intelligent mirroring of application settings, configuration data.
- Bookmarks and other Web configuration and identification data.
- Digital wallet and other transaction records.
- Device configuration and discovery capabilities.
- And, of course, reporting, logging, configuration etc. of the above services.