Leyor: I was about to make my patented martian invader face when I noticed why your postage would be rather expensive. Oh, hell. Oh, well.
Poppaea and Leyor:
This excellent post by x43x should answer everyone's questions about the fit of the Platform case. Notice the bevy of pics of a fetching 950 wearing it.
With the number of controls on the 950, I think it would be fairly impossible for a Kindle case not to cover certain of the top buttons. That said, you can simply lift the top straps out of the way if, for example, you wish to turn off Wi-Fi.
BTW: It isn't just that post which raves about the fit of the Platform series for the 950. The same coveted snugness has been mentioned by Mobileread members on various threads and on Amazon as well. I actually glanced at reviews for other M-Edge cases, hoping that, for example, the Executive for the K2 or the Nook provided an equally good fit so as to have a cheap book-styled cover as well. No such luck, and I'm disinclined to spend even $15 on an unsubstantiated hunch.
Another case that's said to fit the 950 really well is the Sienna Nook case, which is inexpensive, brown and made of leather -- but the finish isn't nearly as nice as the M-Edge.
Edit:
This extremely useful post compares the fit and and craftsmanship of three different cases not originally intended for the 950. In the poster's view, the Sienna comes out ahead.