With iOS 8.1 installed on your iPhone, you'll now see a little more when you open the Passbook. At the top, you'll now have the option to add credit and debit cards (on iPhone 6 and 6 Plus only) so you can make purchases in stores or online.
The new Personal Hotspot allows your iPhone's 4G LTE connection to be accessed from a nearby Mac.
The Camera Roll was taken out of iOS 8 replaced by other folders in your photo library. After an outcry from iPhone users, Apple brought it back.
Turn on Handoff in the settings on your iPhone so you can go from one device to the next to continue working on the same project. It also lets you make calls on your Mac
Apple iCloud Photo Library returns in public beta, which enables the use of purchased iCloud storage for access to photos on any Web-connected iOS device.
You get 5GB of storage for free to start, with extra space costing 99 cents a month for 20GB, $3.99 for 200GB and higher tiers available up to 1TB.
Any photo or video you upload to iCloud will exist in its original format and resolution.
Continuity brings the benefits of cross-platform workflow to iOS 8.1. Now you can start a project on one iOS device and continue it on another at the exact same spot.
With OS X 10.10 Yosemite, you can also send and receive iMessages and share files via AirDrop across all devices, as well as make and receive phone calls.