Someone over at MacRumors was able to locate iPhone Software 2.0 firmware update on Apple's servers. There is speculation that Apple will release the update at noon today, although it hasn't been confirmed. We cannot confirm if this is the final release, so you might be better off waiting until the official release. In the meantime, check out this video for a taste of the new iPhone App Store and Super Monkey Ball.
Apple has a guide regarding firmware updates and warns:
Normally if you choose to update, the iPhone or iPod touch software is updated but your settings and media are not affected. If your device currently has a software version prior to 2.0 (1.x) and you are updating to software version 2.0 or later, all data on your device will be erased in order to perform install the new software. In this case, iTunes will offer to create a one-time media backup of your device depending on what content is on your device and what content is stored in the iTunes Library you are connected to. You should ensure that you have enough free space on your Mac or PC to accommodate a backup that matches the capacity of your iPhone or iPod touch (4 GB, 8 GB, 16 GB, or 32 GB) if you proceed with the this backup.
Again, we'd urge our readers to wait just a bit longer to ensure a trouble-free install.
via MacRumors

