Nokia Lumia 800, 900, and HTC Titan PSDs (for devs & designers)
If anybody wants to showcase an app or cocept design for Windows Phone 7, here are some device PSDs I made. Obviously, you'll need Photoshop to use them. Just paste your screenshot into the "Screen" group (which is at 960x1600, double the actual 480x800 resolution, so you may want to scale everything down to half).
Also, examining these PSDs is a very nice way to learn some cool Photoshop tricks ;)
You can find even more PSDs (iPhone, Nexus One, HTC Sense Clock etc.) over at my blog. Enjoy!