In the midst of updating its operating system to Yosemite, Apple seems to also have some hardware refreshes in mind. According to Mark Gurman at 9to5Mac, sources say that Apple is planning a smaller Macbook (12-inch diagonally) with a high resolution display as well as a pixel-drunk 4K iMac or standalone monitor.
9to5Mac goes on to say that the new Macbook will have a thinner and lighter aluminium body, which would place it somewhere between a MacBook Air or current MacBook Pro weight classes. It will also run on an Intel chip—not the Apple-based A8 processor. This 12-inch laptop has been rumoured since October last year when a reliable analyst released predictions of the coming device. Despite being a little off on the timing (mid-2014), the rumour's validity is only increasing.
As for the 4K monitors, Apple has had a tendency to upgrade pixel counts on its displays when Mac OS X goes through a refresh. It wouldn't be much of a surprise if the company decides to follow a similar strategy. Besides, an OS is only as beautiful as the screen displaying it. [9to5Mac]