This is a really helpful point. I did have a quick question for you since you seemed to really understand this point that a lot of people are having issues with. I understood that my iPad was having this issue although this didn't use to be the case. I am assuming becuase my iPad is probably about 2 years old that this just started to occur.
I used to be able to use my iPad as it was plugged in and it would charge just fine but that is no longer the case. I know that this is most likely just an age issue now. But since so many people are having the "not charging" message pop up, I thought I would question this too. Even though it will charge in sleep mode, this sounds like most people are only having this issue when connected via PC/USB. But mine still says this while plugged into my iPads wall charger as well. Is this also normal? It also seems to take much longer to charge too. (I am sure this could be an age issue as well, but if not I wanted to see other peoples reports).
Today was the same, but while at work, I decided to move my iPad (using the same charger cord) from my work computers PC (which indicated "not charging") to my personal laptop, a Mac and for some reason now it no longer says "not charging" even when I turn it on. It is even charging faster. So could this be a computer issue, a charger issue, or a iPad issue? I am just curious if you've run into similar comments.