Tethering on 3G / 3GS iPhone

You obviously need iPhone OS 3.0 first, or else none of this is ever going to work.
It is dead easy, use your iPhone Safari to go to
http://help.benm.at/, choose your carrier and install the profile.
Then go into Settings / General / Network / Internet Tethering and switch it on.
Your iPhone will go a pretty blue colour when it starts tethering.
On a Mac, just plug the iPhone in, or connect with Bluetooth and it will automatically detect the new network interface.
On a Windows PC, you need to download the “
PDANet Desktop Client” to use it.

For more information, go

Update 2009-06-18: The guys at Benm.at set the APN wrong in their settings file, their one will work but it will be trivial for O2 to find you have installed the file. If you use my version instead, then they won’t see any change in your APN settings. Point your iPhone at this page and follow this link to install my version.

Creating iPhone Ringtones

The easiest way to create iPhone ringtones is to use audiko.net.

You upload an MP3 track, cut out the bit you want to use as a ring tone, add a fade-in or fade-out if you want to, then just click the button to generate a .m4r file to use as an iPhone ringtone. Save the m4r file and drag it onto the “Library” heading in your iTunes.