Screen is slow to wake up from black when pressing Home or Power button

Question

My iPhone 3GGS has been working great since the upgrade to iOS 4, with the exception of a couple of small bugs. I have since upgraded to version 4.0.1 and the bugs are still present. I am posting the bugs here to see if anyone else has run into these, or if there are known fixes.
1. Slow to wake from black screen - Most of the time my phone now takes its sweet time to wake from sleep or a black screen when I press the Home or Power button. It does not always do this, sometimes it wakes right up, but I woul sya that it does this at least half the time.
2. Screen is slow to update and display caller details when ringing. I have noticed that since the update to version 4 my phone will light up, then start ringing/vibrating at least 3 seconds before it will display that there is an incoming call. There also is a delay of another coupld of seconds before it will display the caller details.
3. Similarly, I have noticed that if I have the apple headset in I will feel the phone start to vibrate in my pocket at least 2-3 seconds before the the appropriate ring tone starts to play. Essentially I can answer the call using the button on the headset before it actually "rings".
Again, these are not huge issues, but they are pretty annoying. Does anyone have any thoughts?

Answer 1

While it is unfortunate that you have this problem, I am glad that I am not the only one.
Have you performed a hard restore of the firmware to factory settings without also restoring backup? In the past apple support as recomended that procedure for odd issues. It is not fun since you have to reconfigure by hand and lose all of your settings and application data, but it has worked for other issues.
I have not tried this yet - I have full three stars in angry birds and do not want to lose the status. Sad, i know.