I cannot speak for anyone else, but I would prefer to have an announcement on 'Day X', and then have the product in my hands on 'Day X+1'. The N800 was announced/available in a similar fashion, and probably was a stunning commercial success for Nokia/Maemo.

There is enough information out there to know generally what the hardware is going to have in it. In fact, we have known since the Maemo Summit in the Fall of 2008 the general hardware advances that were to be made in the Maemo 5 lead device. What is not known at all is anything on the UI side of the house... hopefully the next SDK release is imminent since that is to contain the Maemo 5 UI - I'm sure everyone will be extrememly excited to see what the software will allow you to do on the next device.

We've seen the 770, N800, N810, and N810WE so far. I think I can imagine what one would look like with a Hi-Def camera and HSPA connectivity.