I bought my iPhone 3G mid July. Since then I have found the iPhone to slow down a number of times. The keyboard becomes laggy, you cant click on contacts after opening for a while. So as soon as I heard that 2.0.1 was out I quickly plugged in my iPhone and upgraded.
Well so far I am very pleased. I have listed below my findings
– Contacts Much quicker to respond.
– Keyboard has not become laggy yet
– Signal seems stronger. Now get 3 bars of 3G at work, instead of previous 1 bar.
i’ll update this post with more findings.