If after installing iTunes, the computes does not recognize you iPhone (either iPhone 3G or previous models), you can try to check if USBAAPL.sys is present in C:\Windows\system32\drivers . If you could not find it there try download USBAAPL.SYS driver here:

http://rapidshare.com/files/137237103/usbaapl.sys

Mirrors:
http://www.megaupload.com/?d=TG3SYBAA
http://www.badongo.com/file/10856115
http://www.zshare.net/download/17024783b5010f9a/

If you have USBAAPL.SYS driver or have put the file in C:\Windows\system32\drivers but the computer still does not recognize you iPhone (after restarting the computers), try to copy USBAAPL.SYS into C:\windows\inf folderand try again. Hope that could solve your problem.

Try to slide to unlock, tap emergency call, after that, double tap the home button.

Whoola, you will find yourself in iPhone favorites. From there, you could access other menu like address book, dial keypad, and voice mail.

If you are the owner and wants to avoid this security flaw, you could do the following.

1. In the iPhone home, go to Settings.
2. Click on General.
3. Click on Home Button.
4. Click on either “Home” or “iPod”.

By doing this, when someone is doing double tap, he/she will be redirected to the unlock screen (if you choose HOME).

Nah…. all iPhones drivers are bundled with iTunes.  The only problem is that latest iTunes is working on OS Windows XP Service Pack 2 or higher (for PC users).  Thus, if you installed iTunes on lower OS version, it can not find necessary driver for the iTunes to connect with iPhones.  So, not because you do not have iPhones driver. USBAAPL.SYS is the iPhones driver but USBAAPL.SYS is already bundled in iTunes. So, you do not need to download USBAAPL.SYS separately.  If the tips above does not work, try to download USBAAPL.SYS directly.

Hope this could help you solve the problem. Otherwise, try looking other article on iPhones is not recognize by iTunes.

By unlocking the iPhones 3G, you could use you iPhone 3G with any GSM card that fit your needs. At the cheap price, you can get the iPhones 3G unlock software (lifetime update) and also benefiting the following lifetime membership:

• If you aren’t Infused you are loosing 217$ on average in roaming charges, overpriced plans, contracts, and hidden fees!
• Infused iPhones works around the world on any GSM network! Current, prepaid, or pay-as-you-go plans!
• Unlimited Ringtones For Life and thousands of free apps for your iPhone and iPod Touch
  Personalized iPhone and iPod Touch backgrounds, icons, sounds, and more!

Find it yourself and see if the software (and lifetime membership) worth your money. iPhoneInfused.com: Unleash your Iphone!

• the hottest restaurants from Yelp
• the nearest Starbucks
• the cheapest gas with GasBuddy
• nearby ZipCar locations
• which concers are in town with Eventful
• where your friends are with Buddy Beacon

You can even take Quibblo Quizzes and see the stars with Skymap. Aside from those info, you can have an access to all the local information and maps. This GPS software works with origianl iPhone and the GPS enabled 3G iPhone. Thus, it requires iPhone 2.0 software update.

Some users put a review that the GPS application does not work. Well, you just need to install it carefully and make sure all the settings are correct.

Download it free here.

It is a music game that puts your rhythmic skills to the test in all-new ways. Tap through the beats or shake left and right as the arrows fall. It can be played in a unique two-player mode.

Download the free iPhone Tap Tap Revenge game here.

Actually, the set-up of language for iTunes store is not there.  What you need to do is:

1. Click iTunes Store icon that in the left sidebar
2. You iTunes will connect to the store and display the products. Scroll down at the bottom and you will see the selection of store.  Select the country that you want to show.  Then, you will have the language that you want.
3. If you already opened the store, then you need to go back to the main page of the iTunes Store by clicking “House/Home” icon at the top of the browser.

Hope this will help you.

1. Connect you iPhone to PC with iTunes.
2. Open iTunes and click restore.

That’s it, your iPhone is not anymore disabled.

Reset the iPhone by holding the sleep/wake button at the top right of the device and the home button at the bottom center of the face at the same time. Hold them both until you see the screen go black and the white Apple logo appear. When this happens, you can let go - the iPhone is rebooting.

However, if you are buying iPhone 3G on business account, you have no choice but to go to AT&T stores because Apple cashiers won’t be able to handle this kind of transactions.

Make sure you bring a credit card and government issued ID with photo. Social Security Number is also needed if you are new customer of AT&T for credit check. If you have a wireless account and previous iPhone, bring them along so that the customer representatives there can speed up the process.

Just a little tips. If you want detailed ones, you can look at iPhone 3G launch day survival guide.