No. It is still thinner than the PW2 was in the official case. Or at least that is how I remember things as I no longer have a PW2 to compare it with. But to me it seems like the Voyage inside the origami case is about 3/8" to 1/2" thick, and the case only adds about 1mm to each side at most. It is held in with magnets instead of pressure, so they kept it smaller. It doesn't feel heavy to me at all.

ETA: If you live near a Best Buy you can go check it out to see the weight and size. That is what I did. The box it comes in easily allows you to remove the case without damaging the box are breaking a seal, so you could even take it out and examine it in the store. And the case it tapered around the edges just like the Voyage, so it feels even less bulky than the 1/2" or so thickness makes it sound. Very comfortable to hold and it has a nice texture too.