"Let me say that I have never used Twitter," he told students in Shanghai. "I noticed that young people are very busy with these electronics. My thumbs are too clumsy to type in things on the phone."
During his election campaign, Mr Obama portrayed himself as "connected" to the people through Twitter and his ever-present blackberry phone.
Some of his more understanding fans asked if it was any real surprise that the president had little time to "tweet". "Did anyone really think he was posting on his own?" asked @Inap.
Others, however, complained that Mr Obama has a "verified account" which is supposed to prove that it is his own. "Unfollowing @BarackObama now. What a letdown!" wrote @bkuri.
What a fraud. I think there were questions early on about whether Rick really does his own twitter, but I have talked to several people who have seen him take a picture and tweet it out right in front of them... he even tweets from up on stage sometimes at bigger events. I think eventually he will need to engage a little bit more politically on twitter and not do as many puppy pics as we get closer to the primary election date...