For those who are running jessie/testing, and may not have the fixed package for an unknown amount of time, here's a patch that worked for me.
--- js/ui/status/bluetooth.js.orig 2013-06-30 12:26:05.000000000 -0700 +++ js/ui/status/bluetooth.js 2013-06-30 12:30:16.000000000 -0700 @@ -5,6 +5,7 @@ const GLib = imports.gi.GLib; const Gio = imports.gi.Gio; const GnomeBluetoothApplet = imports.gi.GnomeBluetoothApplet; +const GnomeBluetooth = imports.gi.GnomeBluetooth; const Gtk = imports.gi.Gtk; const Lang = imports.lang; const Mainloop = imports.mainloop; @@ -36,11 +37,11 @@ this._applet.connect('notify::killswitch-state', Lang.bind(this, this._updateKillswitch)); this._killswitch.connect('toggled', Lang.bind(this, function() { let current_state = this._applet.killswitch_state; - if (current_state != GnomeBluetoothApplet.BluetoothKillswitchState.HARD_BLOCKED && - current_state != GnomeBluetoothApplet.BluetoothKillswitchState.NO_ADAPTER) { + if (current_state != GnomeBluetooth.KillswitchState.HARD_BLOCKED && + current_state != GnomeBluetooth.KillswitchState.NO_ADAPTER) { this._applet.killswitch_state = this._killswitch.state ? - GnomeBluetoothApplet.BluetoothKillswitchState.UNBLOCKED: - GnomeBluetoothApplet.BluetoothKillswitchState.SOFT_BLOCKED; + GnomeBluetooth.KillswitchState.UNBLOCKED: + GnomeBluetooth.KillswitchState.SOFT_BLOCKED; } else this._killswitch.setToggleState(false); })); @@ -94,10 +95,10 @@ _updateKillswitch: function() { let current_state = this._applet.killswitch_state; - let on = current_state == GnomeBluetoothApplet.BluetoothKillswitchState.UNBLOCKED; - let has_adapter = current_state != GnomeBluetoothApplet.BluetoothKillswitchState.NO_ADAPTER; - let can_toggle = current_state != GnomeBluetoothApplet.BluetoothKillswitchState.NO_ADAPTER && - current_state != GnomeBluetoothApplet.BluetoothKillswitchState.HARD_BLOCKED; + let on = current_state == GnomeBluetooth.KillswitchState.UNBLOCKED; + let has_adapter = current_state != GnomeBluetooth.KillswitchState.NO_ADAPTER; + let can_toggle = current_state != GnomeBluetooth.KillswitchState.NO_ADAPTER && + current_state != GnomeBluetooth.KillswitchState.HARD_BLOCKED; this._killswitch.setToggleState(on); if (can_toggle)