> On September 21, though, Michael Büsch announced the availability of a toolchain for working with the b43 firmware.
Well, we already released a toolchain that works with b43 firmware several years ago. That is what openfwwf was based on.
The new announcement was a new version of that toolchain which also works on the recently released firmware for the new brcm80211 driver. (brcm80211 devices have some differences in the instruction set and format).
So we're currently at a point where Broadcom's latest freely distributable wireless firmware is easily modifiable by anyone. I think that harms Broadcom's argument for not releasing older firmware due to regulatory issues. Technically the new firmware is not really safer than the old one.