What I really miss from the T60-era laptops is the 4:3 (non-widescreen) display. Widescreen is fine for watching movies, but a taller display can be really nice for reading, writing, and coding.
I actually like the widescreen displays for coding. I keep my line counts to 80 columns and now I can have two files side by side. Or a file open and a browser open side by side.