Damn, one of my driver drove with my girlfriend's phone, we were waving to him but he didn't stop. We managed to call him via the app and he said he would send it back to us but never did. After that it was impossible to do anything/contact him via Uber :/
I wonder what recourse you have with a real taxi. I am sure the company contracting a taxi driver would consider firing a driver that steals your stuff. Especially after a few complaints. The main problem seems to be Uber's unresponsiveness to the whole issue. It would not be hard for them to set up some sort of system to prevent fraud and theft and to punish drivers accused of that sort of thing, and to kick them ou…
From what I understand, cab companies acknowledge liability for their drivers, so they'd be much more inclined to take action against unscrupulous drivers. It seems plausible that people who want to use the pretense of driving others around to steal things from their passengers would be much less likely to want to driver for such a company, so I wouldn't be surprised if my experience with a driver willing to go out of their way to return items is much more common with taxis than Uber.