Maybe "non-standard layout" was too strong of a term, but from looking at the pic of it here:
http://hothardware.com/cs/blogs/mrt...hanical-key-switch-keyboards-demystified.aspx
I can see that the enter key is shaped weird, the left shift is half-sized, and the backslash key is not in its usual position. There may be other differences, but I can't tell because that picture isn't particularly high quality.
That layout has been around for awhile. Its actually my prefered layout. I can't stand the smaller backspace key and the huge enter key.