Golgotron says, "So this is what we found after staring at some hi-res photos and manually counting individual pixels – by our estimation, the screen on the Wii U tablet is about 870 pixels wide. However, that doesn’t jive with any standard screen resolutions and it certainly doesn’t match any LCDs commonly in production. 854, though… now that’s a winner. 854 x 480 (WVGA) is a very common widescreen resolution, and it’s within 2% of our not-scientific-enough measurement. Unless Nintendo changes things for the final units, we’re confident the Nintendo U tablet resolution is WVGA."