Grab the latest version of Itunes before you start and be sure you’re on Iphone 3GS 3.0 software ONLY. I can’t say whether this will work with updates beyond that.

1) go to http://purplera1n.com  Click on the link for your OS, and download either the Windows EXE or the Zipped Mac app.

2) Connect your Iphone 3GS via USB to your computer. Cancel any sync activity.  Launch the appropriate app for your system.

You shoudl see one of these two windows, depending on your OS:

3) Click “Make it rain”, and let the Jailbreak commence…

Your Iphone should go into Recovery Mode at this point, and after a couple minutes, reboot itself. At that point, you’re done. One my phone, it actually got stuck rebooting. I had to perform a reset by holding power and home at the same time.

4) After it reboots, you should have a new app called Freeze. Run it, and it should install Cydia – the jailbreak software repository.

5) Enjoy your new found freedom.

Some cool things you can do with your jailbroken iPhone 3Gs:

• Run background apps
• Hide unwanted app icons (stocks, youtube, weather..)
• Tether
• SSH into (and from) your iphone
• Run unix/bsd command line tools with MobileTerminal
• Customize the look of your iPhone
• Use Qik for live video streaming
• Unlock your iPhone for another carrier

In theory, you should be able to simply set up Internet Sharing on your Windows Mobile device with Bluetooth PAN. Then on your Mac, simply create a BlueTooth PAN connection. The problem with this is that you run the risk of eating up your mobile device’s battery much quicker as its using its 3G connection and its bluetooth connection simultaneouslly. Even though it should work, I never could get it going, anyways. Ideally, we want to plug the phone in via USB, so that it is charging while sharing its connection. OSX won’t support the standard ActiveSync USB Internet Sharing method, so you’ll need to do a little work to get it going.

First download these files

Unzip and Copy all three files to /Library/Modem Scripts

Back on your Windows Mobile device, in the USB connection settings, change USB to mode to MODEM instead of ActiveSync. You may get a warning here that ActiveSync won’t work when Modem is selected. Remember to change it back later when you are ready to sync up again with a Windows computer. Once you’ve selected modem, plug your device into your Mac via USB.

Now, go to your Network Preferences menu.

On the left side, you should see your list of Network Interfaces. Click the little “+” sign to add an interface. Click Interface drop down menu, and you should see a choice for “Samsung CDMA Technologies”. Go ahead and choose it, and click CREATE. it should populate itself on the left-hand pane now.

Highlight the new Samsung Entry, and on the right side make the following entries:

Configuration: Default

Telephone Number: wap.cingular

Account Name: WAP@CINGULARGPRS.COM

Password: CINGULAR1

Now click Advanced…

On the Modem Tab, make sure Vendor is Samsung and Model is GPRS (GSM/3G)

On the PPP tab:

For Session, Uncheck “Redial if Busy”

Next to Settings, choose CONFIGURATION and select “Send PPP echo packets” and uncheck: Use TCP header compression.

Apply all these changes and lock the Network Preferences, and you’re ready to test.

Its a good idea when testing to disable your Wi-Fi so you can be sure you’re genuinely using your mobile devices WAN.

Now, highlight the Samsung modem, and on the right side, click CONNECT. If all goes correct, you should see a little meter with your connection strength, and you should now be able to surf the web. Go for it!

In theory, you should be able to simply set up Internet Sharing on your Windows Mobile device with Bluetooth PAN. Then on your Mac, simply create a BlueTooth PAN connection. The problem with this is that you run the risk of eating up your mobile device’s battery much quicker as its using its 3G connection and its bluetooth connection simultaneouslly. Even though it should work, I never could get it going, anyways. Ideally, we want to plug the phone in via USB, so that it is charging while sharing its connection. OSX won’t support the standard ActiveSync USB Internet Sharing method, so you’ll need to do a little work to get it going.

First download these files

Unzip and Copy all three files to /Library/Modem Scripts

Back on your Windows Mobile device, in the USB connection settings, change USB to mode to MODEM instead of ActiveSync. You may get a warning here that ActiveSync won’t work when Modem is selected.  Remember to change it back later when you are ready to sync up again with a Windows computer. Once you’ve selected modem, plug your device into your Mac via USB.

Now, go to your Network Preferences menu.

On the left side, you should see your list of Network Interfaces.  Click the little “+” sign to add an interface. Click Interface drop down menu, and you should see a choice for “Samsung CDMA Technologies”. Go ahead and choose it, and click CREATE. it should populate itself on the left-hand pane now.

Highlight the new Samsung Entry, and on the right side make the following entries:

Configuration: Default

Telephone Number: wap.cingular

Account Name: WAP@CINGULARGPRS.COM

Password: CINGULAR1

Now click Advanced…

On the Modem Tab, make sure Vendor is Samsung and Model is GPRS (GSM/3G)

On the PPP tab:

For Session, Uncheck “Redial if Busy”

Next to Settings, choose CONFIGURATION and select “Send PPP echo packets” and uncheck: Use TCP header compression.

Apply all these changes and lock the Network Preferences, and you’re ready to test.

Its a good idea when testing to disable your Wi-Fi so you can be sure you’re genuinely using your mobile devices WAN.

Now, highlight the Samsung modem, and on the right side, click CONNECT. If all goes correct, you should see a little meter with your connection strength, and you should now be able to surf the web. Go for it!