Apple is investigating the iPhone 3G problems with iOS 4

Hello iPhone enthusiast, it seems the iPhone 3G is experiencing problems updating to firmware version 4.0, as reports indicate…

• Excessive battery consumption
• Phone overheating
• Slowness in performing simple tasks

Initially, other users indicated that restoring the phone to version 4.0, essentially starting from scratch, could resolve these issues. However, even if this is the case, users cannot be forced to restore their device to update to iOS 4.0. While the problems are being investigated and resolved, disabling Spotlight seems to be the most effective solution for the performance issues. To do this, go to Settings -> General -> Spotlight Search and uncheck all of its options.

So, iPhone user, this is one more reason to DO NOT UPDATE iOS4