similar to open in background window, I'd like to see a open in minimized window feature.

I often do this when reading news or searching google. I open everything interesting in another window and minimize it. Then later when I have more time I come back to it...

The "open in background" feature does just that if you're using a non-explorer shell (like LiteSTEP). I assume it's a bug though.

Well if you're suggesting that, why not open maximized, open w/ or w/o toolbar,statusbar, etc.; ... a whole submenu with such options would be delicious.