They do - but you have to opt for it by choosing the "+" display (WXGA+ vs. WXGA). Definitely worth the $50.
I've had a few Sony's (3) and the only thing bad I can say is that they have too much bloatware and phone-home "support" apps. I have one that is noticeably faster now that I put Ubuntu linux on it
Oops...my bad the wxga+ is just higher res (1440).