Wednesday was the first time a team batted first in its own ballpark since 1913. Seattle was the "visiting team" at Safeco Field, and batted first, because the Indians and Mariners were making up a snowed-out game in Cleveland from April. So, in the first game of Wednesday's doubleheader, the Indians were the home team, and in the second game, the Mariners were the home team.
This creates a sort-of messy situation with home/road stats. As far as I can tell, the stats were tallied as road stats for Cleveland and home stats for Seattle. Years from now, when some kid is looking at Ichiro Suzuki's stats on the back of his baseball card, he's going to think he's looking at a typo when he sees that for 2007 Ichiro played in 82 home games (assuming, of course, he doesn't take a day off this weekend).