Joe Gross' review, Portrait of the artist as a guy in a car, of David Lipsky's book has been posted over at statesman.com:
What Lipsky notices for us, and then what is impossible to ignore afterward, is that Wallace is very interested in solitude and what that meant to him and his relationships with other people. ("`Alone' is a word that meant a great, complicated amount to him," Lipsky writes.) He saw books and writing as a bulwark against loneliness, but his devotion to being alone caused his romantic and personal relationships to suffer; he cannot quite find the right balance between the advantages and disadvantages of spending so much time by himself.