Mine has some hiccups, moreso lately and it really is getting old.
I'll click the power button on top to wake the phone. Nothing happens. Wait 3-5 seconds, click the home button. Screen comes on 2-3 seconds later, and takes a screenshot, even though the button presses were about 5 seconds apart.
And sometimes, it takes 3-5 seconds between when I click the power button and when it actually shuts the screen off.
Clicking the home button sometimes takes 2-3 seconds before it actually goes to the home screen.
These don't always happen, but for a phone that ive only had for like 3 months, and having only 4.5GB of storage used, I would think it would stay faster. there is no reason for it to have these hiccups.