Dynamic car home icon

Question

Is there a way of creating a Car Home shortcut that acts like a app widget where I can send dynamic updates like an app widget?

For example, a car home shortcut that displays the current speed.

Answer 1

No. It is not possible to dynamically update the shortcut icon for an app.

You'd have to make a custom widget that looks like an app icon. This would be very difficult, as there are many different Android launchers out there (eg HTC Sense, Samsung TouchWiz).

See Android Home Screen Widget (icon, label - style) for more about this process.