iPhone 3.0 is available for download.
Just click on image above and follow instructions from Apple to upgrade.
or use links after the fold to download official firmware files.
iPhone 3GS: <—- not like you can use it today, but just in case
iPhone2,1_3.0_7A341_Restore.ipsw
iPhone 3G:
iPhone1,2_3.0_7A341_Restore.ipsw
iPhone 2G:
iPhone1,1_3.0_7A341_Restore.ipsw
Read this if you are planning to jailbreak unlock your iPhone after upgrade:
iPhone 3.0 Jailbreak Will Be Available Right After Official Release
Accessories & Apps: Beta Testers Wanted
iOS Firmware/IPSW Download Guide
Legacy iTunes Download Archive
App Store Top Charts
iPhone and Android Resale Value Charts
USA iPhone Carrier Plans Compared
Complete iPhone Jailbreaking Guide 
Complete iPhone Specification Matrix 
I have an iPod Touch 2G.
I upgraded it couple days ago with GM 3.0 release. It caused my iPod not working correctly, like no Networking. Took me awhile to revert back to 2.2.1.
Today, I paid $10 for the iPod Touch upgrade but iPod still behave the same, limited network access.
I checked and both have the same release number.
Hi PL
If you used the GM 3.0 release seed then upgraded to the official 3.0 release then you might need to restore your ipod using the official one you purchased because i had the same problem and it just got solved doing a restore i think it might have to do with a bug inside the 3.0 GM release when you upgraded to offical 3.0.
Try that make sure you delete your backup’s and once restored then create a new ipod or iphone and that should help try that i worked for me hope it helps you.
Good Luck.
Hi,
I downloaded 3.0 from here and tried to restore it but can’t find the .ispw file.
What to do, Plz help
hold shift while clicking restore then find your file location
im tryin to jailbreak my iphone 3g can someone help me plz