I finally got an N router, so now all my Mac's and iphone can connect on the N band. My network utility says it's connected at 144 Mbit/s, but that's what it always says. Is there an application I can install on 2 devices and see what sort of throughput I get over the N network in my house? And also over the Gigabit ports (I have wired connections as well)? Seems like there should be a network speed test utility somewhere, but I've yet to find one.