I was tired of waiting for Rogers to push the Mango update to my Samsung Focus Windows Phone. I found a little trick to fool your regular update process. The very simple trick is found at http://wmpoweruser.com/simple-trick-to-force-the-mango-update/.

The step by step instructions are:

1. Connect your Windows Phone to a PC and launch the Zune software
2. Click on Settings/Update. Allow the software to tell you whether an update is available. If so, skip this guide. If not continue to the next step.
3. Click the check for update button again, and this time immediately disconnect your computer from the internet. Do this by pulling the Ethernet cable, disabling Wi-Fi, etc.
4. Wait 30 seconds or so and you should receive a notification that an update is available.
5. Now reconnect to the internet and continue with the update process through the Zune software.