It might have taken six years to get there, but Apple’s (AAPL) wildly popular iPhone lineup is now available from T-Mobile USA. The world’s top-selling smartphone and its two predecessors can now be purchased off-contract from the “UNcarrier,” which recently gave its business model a big overhaul and did away with traditional contracts and subsidies. Under T-Mobile’s new model, the iPhone 5 can be had for just $99 down and 24 monthly payments of $20 — or, for users defecting from another carrier, the latest iPhone is available for no money down by trading in an older iPhone model. Apple’s iPhone 4S and iPhone 4 are also both available at T-Mobile stores and online beginning Friday.

Zach Epstein has worked in and around ICT for more than 15 years, first in marketing and business development with two private telcos, then as a writer and editor covering business news, consumer electronics and telecommunications. Zach’s work has been quoted by countless top news publications in the US and around the world. He was also recently named one of the world's top-10 “power mobile influencers” by Forbes, as well as one of Inc. Magazine's top-30 Internet of Things experts.