Well, she's brave anyway - I'd question the benefit to her son of being on the cover of TIME magazine, breastfeeding, when he's old enough to read and maybe understand some of the dialogue and debate it might cause but anyway...
It's more interesting to see from the links next to the article that there seem to have been some prudish reactions, where media outlets have chosen to blur her breast out of the picture, which is utterly ridiculous, and then some creepy reactions such as comments on the picture being 'hot' etc.
Er, no it's a picture of a woman and her child engaged in a perfectly natural activity. This salacious 'oooh, breasts, oooh, sexy!!!' reaction is more disturbing to me than a mother who chooses to bf her 3 year old.