When you're hailing an Uber, few things are as frustrating as a driver cancelling your trip -- there may be a good reason, but that still leaves you high and dry. You won't have to deal with those headaches quite so often going forward, thankfully. Uber is introducing a range of driver app and policy changes that should increase the odds of getting a driver who can take your business. To begin with, it's planning a wider release for a Driver Destinations feature that lets workers only take rides going in their general direction, such as when they're heading home from their day job. Only a handful of cities (both US and worldwide) have Destinations right now, but it'll be available in more US cities this week and worldwide "soon."