Mass shipments of Ivy Bridge processors, the next generation of Intel will be postponed to June 2012. Small volumes will be available during launch though in April 2012.
Intel postposted the mass shipment because most first tier notebook vendors still have huge volumes of Sandy Bridge processors. This is because of the low sales volume of Intel notebooks due to a weak economy outlook.
The new Ivy bridge is the next generation processor for notebooks. As tablets and Windows 8 will be the trend in 2012, We expect notebooks will have a hard time in Q4 2012 as it will have to compete head to head with Windows 8 based tablets which probably are also lightweight, dockable with keyboard and comes with a touch screen.
The notebook will probably go into obsolence in the coming years with tablets running quad core and less power hungry processors available from different vendors.