After having used the whole Communicator line since the 9000 model (and, ho! how much used! I have been able to wear and break even those 4 keys near the screen in my 9500, and the hinges of both the 9210 and the 9500) I hope that the *next* communicator will be a derivative of n800, linux and open-source based, with clamshell or slide-on design, touchscreen, real keyboard, and phone hw. Symbian is the past.
And, no, I won't buy the e90. My 9500 has just been "regenerated" (hinges, flat cable, screenside keys) and by now series 80 is good for me.