I heard the small spacebar reduces sound :D
Yes it does. Is nearly the same size as the right shift from ANSI/ISO layout if not the same. Also it's PBT.
I quote my message from Deskthority:
For me what completely ruins the keyboard are those spaces without keycaps making the keyboard 89 keys instead of 91 keys. They're not like the Realforce 106 that is part of the shell:
Show Image
(http://www.takui.net/redpill/images/file_20051023T184635468.jpg)
Those holes seem like those Access-IS MX keys that are completely flat to fill switches you're not using.