I just picked up the T240HD last night, on sale at Best Buy plus a 10% off. I've only used it for a few hours, but these are my initial observations.
-1 stuck pixel near the middle(magenta)
That's the only one I've seen. If I don't think about it, I don't really notice it, and when watching TV/moving images it's nearly impossible to see, just when looking at a web page or desktop it's noticable. Hopefully it becomes like the rainbows I see with DLPs, I just don't think/worry about it, and I never notice them.
-No mounting holes. Not a big deal for me personally, but this could be a dealbreaker for some.
-No composite video inputs. So it's not possible to use an older video game system on this, unless you have a spare VCR lying around(that you hook up via coax, yuck).
-1 combined input for antenna/cable. I believe last year's Samsung models had 2 seperate inputs, which was nice.
-Some missing menu options from older samsung models(like making the setup screen transparent, forcing a blue screen instead of TV static, etc. But there are more color control options, so it somewhat balences out.
-Colors looked not bad out of the box even.
-TV Tuner performs great
-1920x1200 resolution is HUGE.
-Plenty of aspect ratios on TV and HDMI modes, DVI is limited, you'd only want to hook up a PC to the DVI port, if your HD device has DVI out, get an HDMI-DVI cable/dongle.
-ToC and the soft light in the bottom right looks pretty neat, IMO.
The pros definetly outweigh the cons, which are all just little picky things.