I really realize this is quite nitpicky, but when I push the Power or Home button on my phone to 'wake' it back up when the screen's off, sometimes it wakes instantly, but other times it starts up after a slight delay (2 seconds, which seems long for me). Anyone else experience this? Could it have anything to do with my Micro SD card (either size or class)? Or is this just the way smart phones operate (I am new to them), and I should just shutup and be patient? Thanks.