Sony's PlayStation motion controller patents venture into abstract realms

We've seen plenty of PlayStation motion control patents from Sony, some of them surprisingly similar to what we've actually observed of the as-yet-unnamed controller. This new one, however, gets a little odd. The basic structure seems familiar, but Sony's recently-filed patent application deals with add-ons in wild ways that not even the peripheral-happy folks at Nintendo have envisioned. Our favorite is probably the double-ender (Fig. 6B for those of you following along at home), which is probably the most assured recipe for a little brother's bloody nose to be run by the U.S. Patent & Trademark Office since the longstaff was invented. So, does this mean more cash to shell out for a "full" PS3 motion control experience? We can't imagine Sony being gung-ho about that strategy in the face of the (as yet) add-on free Project Natal, but we suppose we'll just have to wait and find out.