Silverlight - Notifications Usability Best Practice

I want to know if there is a siverlight client notification best practice, right now i'm using a Message开发者_开发知识库Box.Show(), but this doesn't seem the right approach to a RIA application, shall i create a new Child Window, NotificationWindow, maybe a label that will contain what i'm trying to notify.

thanks!

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The accepted industry standard for client notifications in Silverlight is to have a custom panel that flies in from the left. It should squash a little bit horizontally for a moment when it stops in the middle of the screen. Then when the user clicks OK, it should fly off the right of the screen (preferably rotating).

Cartoon sound effects are optional, and should be disabled by default.

Alternatively, you could simulate a dreary gray dialog from Windows 3.0, but you will never win the Internet with that approach.