Does anyone have any information on this cartridge and how it might differ from the others in the MMC line?

Someone who has one says the stylus is removable. He doesn't mean from the "headshell", but he says the stylus tip is removable from the cartridge body (and I don't think he means breaking it off). I'd look at it, but he's 3000 miles away from me.

 It isn't! It is much the same as the MMC20E but was offered as the basic cartridge in the US. The stylus is not replaceable. The picture shows it in a P mount which allows it to be fitted to standard arms.

Not worth very much in my opinion as it will be old and the suspension will have hardened. 

That confirms what I thought. The owner keeps saying the stylus is removable. He just wants to try it on an old Technics TT, which would probably be fine (stiff suspension not withstanding).

Thanks! 

As I discovered when our 4 year old got hold of my MMC20E the stylus is removable.

The design flaw is that it doesn't go back in! 

Luckily the suspension had already failed so no real harm was done, but it was a lesson learned!

Simon