SOME CARD INFO MAY BE OUTDATED This page includes information about these cards, currently unavailable on NerdWallet. The information has been collected by NerdWallet and has not been provided or reviewed by the card issuer. If you've been waiting for lower mortgage rates, today just might be your day. The average interest rate on a 30-year, fixed-rate mortgage dropped to 6.1% APR, according to rates provided to NerdWallet by Zillow. This is 12 basis points lower than yesterday and two basis points lower than a week ago. (See our chart below for more specifics.) A basis point is one one-hundredth of a percentage point. A significant drop is eye-catching, but bear in mind that you should consider mortgage interest rates' overall direction, not just what's going on today. Mortgage rates' movements over March and April have been primarily driven by U.S. markets' reactions to what's going on in Iran. For more on how that works, keep reading below the chart.…