Sorry that I can't be more exact about the problem, but
here's what's happening.
With >=udev-096 (maybe 095, I never tried it), firmware
upload will work immediately after you (re)install udev
or when the firmware files change. After that, it
seems to be uploading the wrong data, the bcm43xx
Jun 17 12:22:42 powerbook bcm43xx: InitVals
(bcm43xx_initvalXX.fw) file-format error. Please fix
your bcm43xx firmware files.
I'm unsure as to where to look to find the problem, but
094 always works here, so the regression is after that.
If you have any ideas, I'd be happy to test so we can
get this fixed.