Can you live for a month using only an iPhone to pay for things?

Christina Bonnington sure hopes so.

According to the tech press, one of the "missing features" in the iPhone 5 was the lack of "near-field communications", or NFC, technology. The promise of such tech is that it allows you to turn a phone into a programmable contactless card, and wave it at readers to make payments all day long.

As Matt Drance writes, there was never really any doubt that Apple would not introduce the tech in the iPhone, because although it's a promising technology, it doesn't actually have any use. At least, not today. And so Apple is waiting until it does have some practical applications before moving to roll-out.

In the meantime, one Wired reporter is finding out that it's perfectly possible to make payments with your iPhone today, NFC be damned. Well, not perfectly possible; but doable with a little graft.

Christina Bonnington is living walletless for a month:

You never realize how handy cash is until you don’t have any.

I learned this lesson one day last week when, overcome by hunger, I wandered into the Wired kitchen to grab a bagel for breakfast. I reached into my pocket and suddenly remembered I couldn’t pay for it. See, I’ve decided to spend a month living without a wallet, using my smartphone and various apps to pay for everything. We’re pretty wired here at Wired, but the kitchen still demands cash. Luddites.

Dejected, I went back to my desk and, facing a deadline and unable to venture out into the world, grabbed the first thing that came to hand: a granola bar that’s been sitting in the bottom of my backpack since CES. This culinary disaster was the one setback in what’s been an otherwise flawless week without a wallet, and it taught me a valuable lesson: Be prepared.

We'll see if she can pull it off.

A woman uses Square, a US-only app enabling any iPhone to make mobile payments. Photograph:squareup.com

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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Why it's a mistake to assume that Jeremy Corbyn has already won

The shadow chief secretary to the Treasury on why the race to be Labour's leader is far from over.

They think it’s all over.

But they’re wrong.

The fat lady has yet to sing.

The commentary and reporting around the Labour party leadership campaign has started to assume we have a winner already in Jeremy Corbyn. The analysis, conjecture, predictions/complete guesswork about what happens next has begun in earnest. So we have seen speculation about who will be appointed to a Corbyn shadow cabinet, and “meet the team” pieces about Jeremy’s backroom operation.

Which is all very interesting and makes for the usual Westminster knockabout of who might be up and who might be going in the other direction pdq...

But I think it’s a mistake to say that Jeremy has already won.

Because I hear that tens of thousands of Labour party members, affiliates and registered supporters are yet to receive their ballot papers. And I am one of them. I can’t remember the last time I checked my post quite so religiously! But alas, my papers are yet to arrive.

This worries me a bit about the process. But mostly (assuming all the remaining ballots finally land in enough time to let us all vote) it tells me that frankly it’s still game on as far as the battle to become the next leader of the Labour party is concerned.

And this is reinforced when we consider the tens of thousands who have apparently received their papers but who have yet to vote. At every event I have attended in the last couple of weeks, and in at least half of all conversations I have had with members across the country, members are still making their minds up.

This is why we have to continue fighting for every vote until the end – and I will be fighting to get out every vote I possibly can for Yvette Cooper.

Over the campaign, Yvette has shown that she has a clear vision of the kind of Britain that she wants to see.

A Britain that tackles head-on the challenges of globalisation. Instead of the low-wage low-skill cul-de-sac being crafted by the Tories, Yvette's vision is for 2m more high skill manufacturing jobs. To support families she will prioritise a modern childcare system with 30 hours of fully funded child care for all 3 and 4 year olds and she will revive the bravery of post war governments to make sure 2m more homes are built within ten years.

It's an optimistic vision which taps into what most people in this country want. A job and a home.

And the responses of the focus groups on Newsnight a few days ago were telling – Yvette is clearly best placed to take us on the long journey to the 2020 general election by winning back former Labour voters.

We will not win an election without winning these groups back – and we will have to move some people who were in the blue column this time, to the red one next time. There is no other way to do it – and Yvette is the only person who can grow our party outwards so that once again we can build a winning coalition of voters across the country.