On a slight aside, it's interesting to note that the $100 laptop for the developing world, the new
XO (which can be hand-cranked), has a screen DPI (dots per inch) of 200. Now consider for a moment that the standard 14" XGA screen has a DPI of 90 (!!!!), and even our own lovely 15.4" WUXGA manages a DPI of only 147, and that, for most users, "makes the text too small".
This on a $100 laptop? For kids? (Though also for adults.) Clearly the OS (called 'Sugar', built on Linux) is properly resolution independent - not something Vista manages, nor even the upcoming Leopard (properly). It's amazing to me that people just ACCEPT that too high a DPI "makes the text too small" without batting an eyelid and thinking for a moment that this is the fault of the OS, not the high DPI/screen. (To be fair, it's probably also a consequence of the way web design has evolved - though the XO is web-friendly, indeed is designed for the web, and seems to manage the issue of fixed DPI fonts in html without issue.)
It's laughable and sad at the same time that our state-of-the-art OSes can be so backward... and everyone pretty much just accepts it (and even blames the backwardness on the hardware for "making the text too small"!!!). It is really about time that this deplorable state of affairs changes and the OSes started growing up.
(Can you imagine if people generally only bought printers that printed at 100 and 200 dpi because the higher-resolution printers "made the text too small" ???)