In his rookie season Hill appeared in 77 games, averaging 5.7 points, 2.1 rebounds and 1.8 assists in 16.5 minutes. As a starter he averaged 9.7 points, 3.4 assists and 3.3 rebounds in 27.9 minutes in seven games while filling in for the injured Tony Parker. During that stretch Hill posted his four highest scoring games of the season: scored 20 points in 29:28 minutes on 11/19 vs. Denver, had a career-high 23 points in 22:37 minutes on 11/21 vs. Utah, tallied 20 points in 28:36 minutes on 11/24 at Memphis and had 19 points – along with a career-best 11 rebounds – in 32:40 minutes on 11/26 vs. Chicago.
An early entry candidate in the 2008 NBA Draft, Hill was selected by the Spurs in the first round with the 26th overall pick out of IUPUI. He is the first player school history to be selected in an NBA Draft and appear in an NBA game.