In the mean time, check out Mamacita's (in the Marina on Chestnut) website. Supposedly it is the "Best Mexican in the San Francisco Bay Area." Sounds promising!
UPDATE (via SF GrubStreet)
Looks like Padrecito won't be opening in February but now they are pushing it to March. Padrecito will be a more refined version of their original restaurant, Mamacita. No news on what the menu will consist of but they have been able to secure their liquor license so there will be sure to be very delicious drinks!