The $2,999 JMGO N3 Ultimate is a 4K laser projector that's pricey, but delivers easy placement, paired with excellent video quality. Too bad it's badly let down by Google TV software. Most projectors assume you can put them exactly where they need to be. Real living rooms rarely work that way. The usual fix is digital keystone correction, which electronically adjusts a skewed image to look straight. It works, but it costs you resolution and brightness in the process. The N3 Ultimate is built around avoiding that trade-off entirely. JMGO calls its combination of placement tools the 3-in-1 system, and it takes a different approach to each part of the problem. We previously reviewed JMGO's N1S Ultra , which delivered excellent picture quality but left us wanting more from its smart TV software and speaker output. The N3 Ultimate sits higher in JMGO's lineup and addresses several of those sticking points. Not all of them, though.…