Intelligent comment block handling

When I type...

/*

And press enter, it would make sense that I'm creating a code comment block, thus that should become...

/*
 * |
 */

...the comment block (with proper spacing of course ;))

Also, when I press enter inside the comment block, it would make sense that I'm adding more content to the comment block, thus a line with star should be added...

/*
 * Title of the comment
 * |
 */