While this particular skirmish wasn't lost, it does suggest that many district attorneys don't care for fourth amendment rights. All it takes is enough money behind the next decision, and it'll probably end up similar to our right to propose election reform.
Cellphones are easy way to track someone but not the scariest. Yes there are voice records, bunch of pictures, videos, other private documents. But using smartphone in such ways is like giving them the right to track you. Higher fidelity satellite images are what is really terrifying. Number of commercial satellites serving that very purpose is increasing every day and your government is issuing right to commercial businesses to use equipment that is capable of taking images of increasingly higher resolution. Right now I think the limit is at 50 cm for pixel size. If it stays that way, it won't be that much of a issues. But if it goes down, there might be a problem, big problem.
I'm not talking about typical conspiracy theory where USA government is tracking us, that is now taken for granted. I'm talking about having thousands of civilian companies having the same right. Soon we'll be able to see every fine detail on services on Google Street Maps and with computer technology growing by leaps and bounds in few decades those still images will be converted into real time 3D highly realistic interactive videos (practically something like video games). There will be virtually no place to hide, voluntary or not everybody will be tracked in every imaginable way by multiple parties at the same time. So far only Paypal has access to my bank account, in the future every single service provider (common term for IT companies of the future, because they will be providing various services) will have access to your bank account and not just that. Number of tracking sensors on "smart" technological units will increase and they all will be interconnected and companies will claim they won't use that data for their own gain (one huge lie). So far only smartphones are the massive thing. In the future smartwatches market will grow, smart home appliances will spread to less fortunate when they find a way to cut the prices. Augmented reality glasses and virtual reality headsets hand in hand will provide entertainment and take our privacy away, collect as much data as possible and send it to huge clusters of computers for further alysis. This is happening already, but it's going to become many order of magnitude bigger.
You think movies depicted future as scary. You know nothing. It will be million times worse. Good thing, I won't be alive for more then 50 years from now and probably won't live during the worst times that are bound to come.
After all, no one with power gives a fuck about your 200 years old fourth amendment. There are businesses to be taken care of and it doesn't matter at what cost they come.