I have a 13" MacBook Pro (mid-2012) but it is limited to 1280x800. The other resolutions available to me, when I go to system preferences, are 1152x720, 1024x768, 1024x640, and 800x600.
Presumably, the 13" MacBook Pro is a popular laptop.
The reason I am asking the question is because I saw someone on ux.stackexchange.com mentioning 1366x768 as the standard widescreen for modern laptops.
Is it possible that they were referring to PC laptops which are a larger percentage of the laptop market?