@epage, Yes, "dial" button is grayed out when using BT tethering... I ran dialcentral in command line mode using BT tethering and home wifi. Following is the msg from BT tethering:

/media/mmc1 $ python2.5 /usr/bin/dialcentral.py
/usr/lib/dialcentral/gc_dialer.py:72: GtkWarning: gtk_widget_grab_default: assertion `GTK_WIDGET_CAN_DEFAULT (widget)' failed
self._widgetTree = gtk.glade.XML(path)
python2.5[5569]: GLIB DEBUG ConIc - con_ic_connection_send_event(0x195aa8, 75388a19-8943-4b2b-bb41-78c03f7ef734, DUN_GSM_PS, 0)
Exception in thread Thread-2:
Traceback (most recent call last):
File "/usr/lib/python2.5/threading.py", line 486, in __bootstrap_inner
File "/usr/lib/python2.5/threading.py", line 446, in run
File "/usr/lib/dialcentral/gc_dialer.py", line 241, in attempt_login
if self._gcBackend.is_authed():
AttributeError: 'NoneType' object has no attribute 'is_authed'

Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python2.5/threading.py", line 486, in __bootstrap_inner
File "/usr/lib/python2.5/threading.py", line 446, in run
File "/usr/lib/dialcentral/gc_dialer.py", line 223, in _idle_setup
self.attempt_login(2)
File "/usr/lib/dialcentral/gc_dialer.py", line 241, in attempt_login
if self._gcBackend.is_authed():
File "/usr/lib/dialcentral/gc_backend.py", line 100, in is_authed self._grab_token(forwardSelectionPage)
File "/usr/lib/dialcentral/gc_backend.py", line 321, in _grab_token
self._accountNum = anGroup.group(1)
AttributeError: 'NoneType' object has no attribute 'group'

Traceback (most recent call last):
File "/usr/bin/dialcentral.py", line 12, in <module>
gc_dialer.run_dialpad()
File "/usr/lib/dialcentral/gc_dialer.py", line 447, in run_dialpad
gtk.main()
KeyboardInterrupt