Hailing cabs in Boston is tough, as very few of them want to be saddled with the responsibility of ushering in a Thousand Year Reich. Finally giving you a better way (to get places...not invade them): Uber.
Just now rolling into the Hub after improving, nay, vastly improving, urban car-calling culture in cities across the country, Uber's a stupid-simple phone app that allows you to one-touch-signal whichever town car happens to be closest to you -- the brainchild of an SF techie, proving that Silicon Valley nerds at least have brain-sex. Just send out an alert on your GPS-enabled phone (or get old-school and text 'em your address), and Uber'll signal the closest suit-'n-shades-wearing driver looking for a fare, then provide you not only an estimated pickup time (around 5-10min) and eventual arrival notice, but also the ability to map-track the incoming car in real time, aka any time a Flavor of Love contestant described themselves. Here's the best part: Uber keeps your card on file and settles your debt with the driver automatically (with rates determined by distance when going above 11mph and time when going at or below 11mph), and they even take care of the tip, though how exactly they communicate your patented "don't eat yellow snow" line is unclear. Probably text.
Anywho, there's also a post-ride rating system where you can help influence which drivers they keep/drop by giving them a rank of one to five stars, helping to decrease the chance that the next dude who needs to get where he's going efficiently isn't just hailing mary.