Today's Tech: Samsung Galaxy S4 and iPhone 5 face off, Knox lures enterprise users to Android, Reuters editor indicted for hack

It was just yesterday that Samsung officially unveiled its Galaxy S4 smartphone, but we've already managed to spend some time with it. An early hands-on preview with the S4 revealed that it's a handsome piece of hardware, with a plethora of interesting software additions. "The Samsung Galaxy S4 embraces and extends a lot of the current trends in mobile phones. It alters Android relentlessly to add a lot of little conveniences, which is going to drive Android geeks nuts. But for the mainstream, this is going to be a rock-solid, usable big phone worthy of its success," writes Sascha Segan. Read on to find out more and to see a handy slideshow of the S4's hardware.

It's no great secret that, in recent years, the smartphone world has been largely defined by the struggle between Apple and Samsung. On one hand, there's the runaway success of 2012's Galaxy S3 coupled with the rise of the Android platform; on the other, in Apple and its iPhone you have one of the most iconic companies ever and one of the most popular gadgets of all-time. The two firms and their industry-leading products are as closely matched as ever. Now that Samsung has unveiled its latest flagship handset - the Galaxy S4 - the battle for 2013 looks like it has kicked off it earnest. In the immediate aftermath of last night's Radio City Music Hall launch, we see how the Samsung Galaxy 4 and Apple iPhone 5 compare and give a (very) early verdict on the South Korean firm's new flagship handset . Follow the link and join the discussion.

When an Android handset like the Samsung Galaxy S4 is unveiled, we scrutinise the device almost solely from a consumer standpoint – and rightly so, it's unequivocally a device for the mainstream. But the teams behind both its hardware and software will be keener than ever to see the discussion branch out from this realm, and have Android phones analysed in terms of their potential place in the business world. This is likely to have contributed to the prominence of the Samsung Knox security solution in last night's launch presentation, as both Samsung and Android staked a claim for a place in the mobile enterprise. Follow the link for our analysis on whether the strategy will work.

In non-S4 news, Reuters deputy social media editor Matthew Keys was indicted yesterday by a US federal grand jury for his alleged assistance in the 2010 hack of the LA Times, which was carried out by members of Anonymous. Keys faces up to 25 years in prison and fines of $750,000 (£495,000) for handing over his login information to the content management system for KTXL FOX 40, which led to an Anonymous member defacing a story on the LA Times website. He faces one count of conspiracy to transmit information to damage a protected computer, transmitting information to damage a protected computer, and attempted transmission of information to damage a protected computer. Read on to find out more about the peculiar circumstances surrounding the case.