I'm surprised they don't sell the Contour Mouse by volume. At least they include a free cord with every mouse. It probably helps to swing it around when you're attacking someone with it.

With the new Logitech mice, can't you just give up one of the side buttons and use that as your third button? Seems like problem solved to me. I haven't used a mouse for any significant amount of time in probably two or more years. The only thing I'm really interested in one for is design work, since web browsing and other similar tasks are best done with the keyboard and trackpad for me.

Though I'll end up using a mouse for all functions while my notebook is parked on a stand as a secondary display. In that case I do appreciate some extra buttons, but I don't really need the "third" one to be between the left and right. I'd probably never use the mini button on the new Logitech mice, just like I completely ignored the useless mini buttons on the MX700 and MX900. Anything behind the scroll wheel is an ergonomic nightmare I'm afraid - especially when so far back as on the two models I just mentioned. And the button in front of the wheel? They may as well have put it on the back or bottom of the mouse, that's how useful it is.

Of course the most dumb-ass thing in their BlueTooth MX900 is not including an on/off switch. If they expected people only to use it with their base, they shouldn't have bothered making it BlueTooth at all. It's exactly the same product as the MX700 with the exception of the radio.