[dieterrams]

I'm not sure why this is notable. You've long been able to post updates longer than 140 characters. They get truncated in the feed, but not when viewed individually.

Edit: icodemyownshit's explanation is likely correct. (I hadn't realized the tweet was just one big link.)

[joelmichael]

This one gives an error when I try to bring it up within his feed. I think it's different. Also, for that reason I wouldn't recommend retweeting it; you'll just break your friend's feeds.