I don't have a well thought-out impression of this BART credit card idea just yet. I'm still thinking about it. My initial impression is...how much did it cost to launch this program and why couldn't we just spend that on something else? My second impression was...if you only gain points by buying BART tickets with the BART credit card, it will take forever to get free BART tickets.
Take a look at Contra Costa Times' article about this new BART credit card program.
Based on Linton Johnson's statements, I believe part of BART's intention is good, but I don't know if I'd risk my credit score opening yet another credit card. Also, watch out for the interest rates!
Some people can really save from this, especially those who spend $10 a day, 5 times a week. I guess I'm lucky since my employer gives me commuter checks. I probably won't need to apply for this credit card because the money I spend from my own pocket on tickets is a small amount.