Hey folks, I noticed in the latest svn repo that Bluetooth does not work on my 400xm-bt, I have also noticed some people who 
have had the same trouble one mentioned that it was working 1432, but it still isn't working as of 1482 so I started investigating and noticed this:

--- gumstix-buildroot-1432/package/bluez/bluez-utils-hciattach-gumstix.patch 2007-07-26 23:25:30.000000000 -0400
+++ gumstix-buildroot-current/package/bluez/bluez-utils-hciattach-gumstix.patch 2007-07-26 22:41: 18.000000000 -0400
@@ -53,8 +53,8 @@
int retval;

tcflush(fd, TCIOFLUSH);
- system("echo clear > /proc/gpio/GPIO7");
- system("echo set > /proc/gpio/GPIO7");
+ system("echo clear > /proc/gpio/GPIO12");
+ system("echo set > /proc/gpio/GPIO12");
nanosleep(&tm, NULL);

So it looks like it is just using the wrong GPIO (perhaps 12 is for the verdex boards?)

Once I made this change... bluetooth works like a champ.