It's World IPV6 day today, with some of the biggest internet companies in the world testing deployment to IPV6 to make sure that the eventual transition will go off without a hitch.

The day has been organised by the Internet Society and is being backed by the likes of Google, Facebook and Yahoo.

Those who wanted to join in with the web test had to ask for permission before 3 June, but on the Internet Society's website you can test out your readiness for IPV6.

Successful transition

"The goal of the Test Flight Day is to motivate organisations across the industry – internet service providers, hardware makers, operating system vendors and web companies – to prepare their services for IPv6 to ensure a successful transition as IPv4 addresses run out," explained the Internet Society about the day.

Facebook said of the test: "World IPv6 Day will allow us to better understand how our infrastructure and code perform under IPv6 while minimising impact on our users.

"Since January, we've conducted several studies and tests of our own and have gained even greater confidence that our site is ready for IPv6."

The transition from IPV4 to IPV6 will free up more than 4 billion new web addresses.

The Financial Times has announced a new browser-optimised subscription app for the iPad and iPhone, hence denying Apple the share it receives from an App Store-based offering.

The FT is instead opting for a HTML5-based site that will offer a "true cross-platform experience."

This will mean that the newspaper no longer has to give up a 30 per cent cut of everything it makes as it currently does with the App Store offering.

The FT has decided that it'd rather keep the 100 per cent of the takings and risk losing potential readers by missing out on the ease of downloads and simple payment plans users enjoy through iTunes.

App Store revolt

The paper says it plans to keep its current App Store app open until June 30th, which is the date Apple has set publishers to adhere to its guidelines. After that the FT says its appmay be blocked.

The FT is the second major publication to go down this route. Last month Playboy launched the i.Playboy.com website in order to swerve the App Store's stringent ban on adult content.

The 30 per cent cut that Apple takes has long been a point of contention for publishers. Is this the first signs of a revolt against the App Store?