Forum Nokia has published the official technical specifications of the Nokia E55, Nokia E75, 6710 Navigator and 6720 Classic. Interesting to note that the E55, 6710 and 6720 all have single processors running at 600mhz (as does last week's 5630 XpressMusic) which is a big step up from the 369mhz speed of most previous single processor S60 models. However, the amount of free RAM available for user applications isn't listed for any device.