--> 2013 will be the year of the phablet. Smartphones will get bigger and bigger until they they settle at about an average screen size of 5 inches.
--> Apple will make the iPhone bigger yet again! I think there'll be a 4.8"+ iPhone unveiled around June time. Or perhaps they'll keep the base-level iPhone at it's current size and release a 5.4" iPhone/iPad phablet.
--> There will be a 7 inch Windows RT tablet from Microsoft (or one of their OEM's). The fact that there isn't one already is baffling. It's been clear since July last year that 7 inch tablets were on the rise and MS should've grasped this and had a 7 inch Surface released in time for Xmas 2012. The fact that they've not done it yet makes me suspicious...which brings me to my next point!
--> When MS announce the Xbox 720 they will also announce a 7 inch Xbox tablet. I think it'll be competitively priced and come with controller-like plug-ins for each side which will basically make it a tablet with an optional Xbox controller attachment.
--> The Wii U will sell under 7m units. This is due to consumers not taking to their tablet controller like they did to the Wii, the price, and various other market factors. Discuss that here if you wish: http://gamrconnect.vgchartz.com/thread.php?id=152200 
--> Google will peak. The demise of Google will begin in mid-2013. Mark my words!
--> Apple MAY give iOS's interface a revamp. I'm 50/50 on whether I think this'll actually happen though.
--> Wii + X360 + PS3 will be down at least 50% YOY combined.
My prediction threads:
Wii U will sell under 40m units (made on 14th September 2012)
PS Vita will sell under 20m units (made on 30th September 2012)
Wii U will sell under 7m in 2013 - I was right
