Sony is making a device using linux, an ARM Cortex processor, an SGX graphics chip, front and rear cameras, a built in mic, external speakers, GPS, Wifi, Bluetooth, and an Accelerometer, why would I compare that to an N900 sucessor?

Ok a quad-core device may be a little bit overkill, but I don't want an incremental upgrade to my N900! The next N900 whether it’s the N9 or not must be a "GENERATIONAL" step over its predecessor. If not Nokia may as well forget about trying to compete with the new devices coming to market.