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Today's Tech: Mobile world gears up for Samsung Galaxy S4, Google Glass is analysed, report finds software spying on activists

Rarely is the mobile world found wanting for excitement. The beginning of 2013 has witnessed a rash of top notch smartphone unveilings - the HTC One, Sony Xperia Z, and BlackBerry Z10 just to name a few - and consumer choice is as rich as ever, yet the imminent Samsung Galaxy S4 launch is truly in a league of its own. Not since Apple was building towards the iPhone 5 have we held our collective breath in this manner, but the current state of play didn't come about overnight. So how did we become so paralysed by excitement? Where did Samsung's prodigal journey to New York's iconic Radio City Music Hall begin? And, perhaps most importantly of all, what's coming later this evening? Ahead of tonight's blockbuster launch, we take a look at the evolution of Samsung's Galaxy S line - follow the link to begin your history lesson.

Though we won't know much about the handset until tonight's unveiling, we do know it will be a landmark product with a lasting effect on both Samsung as a company and the mobile landscape as a whole. For one, the Galaxy S4 will see Samsung wrest even more of the public's goodwill from Apple as it establishes itself as the mobile sector's leading innovator. Read on to find out more about what the smartphone will mean for Samsung's business.

Bar the phone-of-the-hour Galaxy S4, few products have been talked about as much as Google Glass has recently. Google unveiled Project Glass in April 2012, saying it started as a project in the company's not-so-secret Google X research lab. We're just coming up to the one year mark since the device's initial announcement, so we decided this was a good time to round up and summarise what we've learned so far. Follow the link for everything you need to know about Google Glass right now.

An off-the-shelf surveillance software designed to enable law enforcement agencies to remotely monitor criminals is being used by several governments around the world to spy on their own citizens, claims a new report published on Wednesday. FinSpy, the surveillance tool in question, can bypass security software, log keystrokes on the target computer, record emails and Skype chats, and even perform real time monitoring through the user's webcam and microphone. However, according to security researchers Morgan Marquis-Boire and Bill Marczak, the use of FinSpy software is not restricted to government agencies legally surveilling criminal and terrorist activities. Who do you believe?