For all the great things Los Angeles has, one we haven't been able to nail is the cab situation. Getting taxis here has usually involved extended waits on the phone line to place your order, discrepancies between the ETA you're given and the actual arrival time of your ride, cabs you've ordered taking other passengers instead, and you can consider yourself very lucky if you've ever managed to hail one. But things have changed thanks in large part to the tech community in San Francisco where several start-ups have remedied the problems with using taxis the old fashioned way. From apps that dispatch luxury black town cars to rideshare networks and programs, here's a guide to six alternative taxi services and apps that combine convenience, luxury and technology to make getting around L.A. without driving a lot easier. [photo via]