With M1 and Starhub launching their iPhone soon, Apple has push their carrier settings for these two Telcos via iTunes and you should be able to start tethering without having to jailbreak. (7 Dec)

Check out the updated configuration instructions that will sort the tethering issue for Starhub and M1 users here

Internet Tethering is a new feature with OS 3.0 that allows you to share your Internet connection from your iPhone via 3G, to your laptop, either with USB or Bluetooth connection.

For Starhub and M1 users, you will first need to install a mobile configuration file that you can download from this site http://www.iphone-notes.de/mobileconfig/.

Make sure you choose the correct Carrier (Starhub or M1) and key in an email address which you can access via your iPhone.

Once that is done, when you receive the email with the configuration in an attachment, click on the attachment and click Install. Click OK and Done when the option is available during the installation process.

Next, restart your iPhone – press and hold the Sleep/Wake button at the top of your iPhone and slide your finger across the slider to switch off the iPhone, then switch it ON again.

Check the Tethering Settings when you access Settings-> General-> Networking as seen in the image on the side.

To learn how to use your iPhone as a modem, read this Apple document on doing that.

(infomation via HWZ and Tim Chong)

Update – seems like for Starhub, its either MMS or Tethering and not both — together (see user feedback at HWZ). Will update the page when a better solution is found

Update 2 – for those who had problems with the settings from the previous site – try surfing with Mobile Safari on your iPhone to help.BenM.at/help.php and install via Safari. Next, change your Cellular Data settings from shmms to shwapint, user and password left blank. Reboot and try. Tested by mambo31 at HWZ.

Disclaimer – I am not able to test as I still don’t own an iPhone (point fingers and toes at StarHub).