I made additional test on my T60 using the patched iwlwifi from the git
repository, i wrote in my earlier comment that the speed was back to normal,
but that doesn't last longer or work in a reliable ways, every now and then the
speed will go from normal to around 1mbps without apparent reason,
there was a commit around two days ago in the iwlwifi git that maybe will fix
this problem, see here:
http://git.kernel.org/?p=linux/kernel/git/iwlwifi/iwlwifi-2.6.git;a=commit;h=1c3a1973b2d7c46c886d243367dcc5988a4ef704
maybe it's related, maybe not, i found it searching a fix for the iwl3945 slow
fix for this problem was committed three days ago in iwlwifi git repository, see
http://git.kernel.org/?p=linux/kernel/git/iwlwifi/iwlwifi-2.6.git;a=commit;h=0d8e0e28a27779f480adb6674ca5fc29879a2080
tested it on an Thinkpad T60 and wifi speed seem's to be back to normal.
now waiting for ubuntu to r