Actually, the Nexus 10 has the same resolution as the MBP 13 inch (2560x1600) - although the Nexus 10 does run Android 4.2. So it seems to me that to the ability to drive a 2560x1600 screen is also largely dependent on the operating system.
Whether Chrome OS is capable of driving 2560x1600 with the same (or better) hardware than Nexus 10 remains to be seen.
Whether Chrome OS is capable of driving 2560x1600 with the same (or better) hardware than Nexus 10 remains to be seen.