I have only a passing knowledge of how the Clover works, but from what I've seen, the super-fancy technology behind it can be best replicated at home with a $25 device called the AeroPress.
I picked up one of these over the holidays, and it essentially does the same thing as the Clover, only with a bit of manual pressure. It makes the best cup of home-brewed coffee I've ever had, takes about 30 seconds, and is nearly foolproof. I can't recommend it enough. [end of evangelical gadget ranting]