I only noticed this after I installed the 2.2 update. Now, sometimes when I plug the charger in, the LED blinks amber. It is not just the LED blinking, it is blinking because it charges for a second, then stops, then charges, etc. It does this with the OEM AC charger, and any other charger I use, however, it does not do it all the time, it seems random. When it is doing this, it doesn't actually charge. I turn the phone off, plug the charger in, it's fine, turn the phone back on, still fine. It's somewhat annoying. Anyone experience this or know what's going on? It's definitely not an overheated battery.