You may have downloaded and tried out HTC Home Time and Weather Gadget for Windows 7 earlier. HTC Metro Home Gadget for Windows 7 and Vista has now been released.
Metro Home is a special version of HTC Home with dynamic interface in the Metro style.
It is based on Windows Phone 7 Metro user interface and displays the date, time, temperature, weather information and a picture slide-show.
HTC Home and Metro Home are both, open-source projects.
I think you will like it, if you have liked HTC Home!