The 2015 MacBook looks great: a very light computer, with a Retina screen. It is essentially an improved version of what has made the MacBook Air great, following the design direction provided by the iPad. That it lacks some of the ports we have come to expect is just the natural evolution coming from ever improved wireless connectivity. And none of these ports will be missed in a few years time:
- The SD card was great to store photos, but its time has come. With flash memory now cheap enough for tens of thousands of photos, it is high time dedicated cameras get just a large internal storage, and provide wireless access to transfer photos to your computer and phone in the background.
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Almost nobody carries anything else with them to connect to their computer when on the road. And for those items at your workplace a dock is a good solution, with only one cable to connect to your computer.
When you are using an external monitor, it is the natural place to double as your dock. And on the road you will probably want to have a combined dock and power supply that can charge not only your computer, but also your phone and tablet. The electronics needed for this can be made compact enough to not add much bulk compared to a pure power supply.