Smith flew into Miami Sunday to meet with Dolphins officials as the 49ers courted free agent star Peyton Manning.
"I'm never surprised by anything," Smith told the Fort Lauderdale (Fla.) Sun-Sentinel.
Smith led the Niners to the NFC Championship last season but has not yet signed a new contract offered by the team. Smith's status was thrown into question by the slow start he experienced after being drafted in 2005 and by Manning's availability.
"This is the NFL. I guess nothing surprises me anymore," said Smith. "I never thought a year ago Manning would be a free agent either."
The Sun-Sentinel said the Dolphins also have been talking to Green Bay backup quarterback Matt Flynn.
Manning has apparently scratched Miami from his short list and is mulling the idea of joining San Francisco, Denver or Tennessee in the next few days.