Bernardo Fallas has an article about Roy and the possibility of being traded, and as far as Roy knows, there's nothing that's about to go down.
Fallas:
Oswalt said the team has yet to approach him or his agent, Bob Garber, with a trade proposal. He is mindful of the possibility that one might not come this season.
Roy:
"They told me they'd come to me first and tell me what they had on the table, and they haven't."
Another interesting note from Fallas:
Industry insiders are pegging Oswalt as a long shot to be traded, with one baseball official telling the Chronicle that Berkman, 34, commands the better odds of being traded than the veteran right-hander. This is because the perception is the Astros will expect teams to pick up a significant portion — if not all — of Oswalt's salary as well as give up top prospects.