According to Mike Florio of Profootballtalk.com, Kurt Warner has a visit scheduled to San Francisco on Monday.

It doesn't seem to me that the 49ers would be a good match for Warner's skillset at all, and I'm pretty sure this is just a move to up the Cardinals' offer.

Florio has an interesting opinion as to why the 49ers might be doing it anyway.

"It could be that G.M. Scot McCloughan has agreed to participate in the charade as a favor to Warner’s agent, Mark Bartelstein, who desperately needs to recapture the leverage Warner squandered with his constant "I’ll play for the Cardinals or no one" routine. Even if the Niners don’t land Warner, Bartelstein will be indebted to McCloughan — and McCloughan would be able to seek a return favor at some point in the future."