I really am sorry for the unrelenting onslaught of Favre reports, but the following seems important enough to pass along.
Via a report at ESPN.com, Favre denies sending any text messages about retiring, and says he'll play in 2010 if he's healthy.
Brett Favre(notes) told ESPN's Ed Werder in Hattiesburg, Miss., on Wednesday that he has not made any decision about returning to play for the Minnesota Vikings this season and says he will play if healthy. [...]
Favre denied sending text messages to Vikings teammates and club officials that might have indicated he had decided to retire.
Favre told ESPN that he has decided to play for Minnesota in 2010 if his surgically repaired ankle heals but said the fact he has not been able to decide his future reflects his level of concern about regaining his health.
Favre also denied that his decision was being swayed in any way by money.
So there's that. On this issue, you can choose to believe two reports that surfaced independent of each other, from Judd Zulgad of the Minneapolis Star Tribune and Jay Glazer of FOX Sports, or you can believe what Brett Favre told Ed Werder.
Or, you can just wait until the Vikings vs. Saints season opener, and see if Favre is there. At this point, that seems like just about the only thing you can put any stock in.