This Sunday when i was giving DBUS a look and thinking about all the cool things possible with it, one of my friend came asking how can he control his torrents from anywhere and i thought controlling is ok, do you want SMS updates??, i fired up qdbusviewer and there it was a simple way to get sms notifications of finished torrents using well twitter and ktorrent, so here are the steps
1) setup your cell phone to recieve SMS updates in twitter,
2) get one more twitter account lets say ktorrent, follow ktorrent and turn device updates on,
3) now save the script below say as torrenttwit.py
4) now enter this ktorrent account username and password in the script below,
5) start ktorrent if not already started, now run the script by typing “python torrenttwit.py”

import dbus,base64,urllib2,urllib
from dbus.mainloop.glib import DBusGMainLoop

DBusGMainLoop(set_as_default=True)
username="username"
password="password"

def tweet(msg):
        request = urllib2.Request('http://twitter.com/statuses/update.json')
        request.add_header('Authorization', 'Basic %s' % base64.encodestring('%s:%s' % (username,password))[:-1])
        request.add_data(urllib.urlencode({'status': msg.encode('utf-8')}))
        opener = urllib2.build_opener()
        req= opener.open(request)

s = dbus.SessionBus()
kt = s.get_object("org.ktorrent.ktorrent","/core")

def update(k):
        torrent = s.get_object("org.ktorrent.ktorrent","/torrent/"+k)
        name = torrent.get_dbus_method("name","org.ktorrent.torrent")
        tweet("ktorrent: finished " +name())

kt.connect_to_signal("finished",update)

import gobject
loop = gobject.MainLoop()
loop.run()

you are done, now whenever a torrent finishes the script will twit and you will receive an SMS update
enjoy