Nation's biggest CU said its activity split between refinances and new purchases.
Android Market offering joins iPhone app in Navy Federal's electronic banking products.
Standalone branch in Mesa, Ariz., Walmart shopping center to serve about 10,000 members in Phoenix area.
Offer can be used toward closing costs or as credit for outside fees in refinance or purchase, credit union says.
Navy, Pentagon, FAA credit unions join list of financial institutions offering help if shutdown stops cash flow.
Magazine puts biggest credit union on list of top workplaces in Florida for third straight year.