Source: Alex Yakhnin's Blog
If you have seen the demo of the sample application "USGA Shot Tracker" that was created by the UX and design team at Microsoft to demonstrate the principles of the UX on WP7 platform, you have probably noticed how the app is displaying a splash screen with an animated progress bar. The problem is that the SplashScreenImage.jpg which is used in the WP7 applications is just a static image and a few people are wondering how this functionality could be achieved. I don't know how exactly it was done in this application, but this what I came up with.
As you all should be aware by now, the first release SL for the WP7 is not going to contain any structured data storage (SQL CE) functionality or LINQ data providers. However this fact should not preclude us from rolling out our own version. After all the LINQ to Objects is still supported and all what we need to come up with at this point is the ability to persist objects (or entities) to device's storage and then read from it