Well, the rumour was right. Samsung has announced the date for the launch of the Samsung Galaxy S IV smartphone - and that date is indeed 14 March 2013.Samsung used Twitter to confirm the event, posting a flyer with all the details, plus the message 'March 14. Ready 4 the show? #UNPACKED'. No specific mention of the Samsung Galaxy S IV, but we all know what's coming.Clever marketing by Samsung too, which isn't hosting a press event at the MWC show. Instead, it has used the event to announce its own event, taking the headlines away from the competition. Cheeky.As for Samsung's big reveal, it's an Unpacked event (which could mean more than one device launching), taking place in New York at 7pm local time. That's around midnight UK time, which is a little annoying, but at least you'll have all the details when you get out of bed the day after. If you really want to get it first, there is a live stream of the event planned for YouTube. But that's strictly for the dedicated amongst you.Specification rumours point to an Exynos 5 Octa (8-Core) processor, Mali-T678 (8-Core) graphics, a 4.99-inch SuperAMOLED Full HD Resolution Display, 2GB RAM, 13-megapixel rear facing camera capable of shooting 1080p Full HD video, 2-megapixel front facing camera capable of shooting 720p HD and Android 4.2.2 Jelly Bean for the OS.We'll find out if that actually holds true in around three weeks.