High resolution displays, and Home Theatre PC's present a similar problem: Things get to small for comfortable viewing. On my HTPC I spent a lot of time tweaking KDE3 by increasing font sizes and whatever else could be scaled up, so that it is readable from the couch.
Recently I set up a laptop with a 14' screen at 1920x1080 resolution. Beautiful display, but only young eyes could see well enough to use it at default settings. After much trial and error I found that KDE4 allows you to force higher dpi settings, which scales the desktop in a uniform manner. The result is quite good without having to tweak a lot of separate settings.
Anyone else dealt with this issue, and have tips to share?