And the answer to that question is yes. Even more so when you read what he plans on doing with that resolution. Everyone in this thread and the other thread I posted have posted that it runs great. The only one here who has anything negative to say is the only person who's never actually done it and that's you.Asdf, I hear you. The title of the thread is 'Can the 13" dor 2560x1440 well?' At this point all I can say is that it must depend on how you define well.
I've seen people edit HD video in Final Cut on 13" MBP's connected to 27" and 30" monitors with no lag or hiccups. It's not as big of a deal as you think it is.