hey...i got the comparsion between those two!!
http://www.nokia.com.sg/nokia/0,,849...tatus=complete
Get E90!
It has solid build quality and numeric keypad in addition to a QWERTY keyboard.Ity also has Wi-Fi, HSDPA, GPS and Bluetooth stereo, large 800 x 352-pixel screen and it can also support various messaging clients including BlackBerry Connect; fast processor.you can also send images captured with the integrated 3.2 megapixel camera with flash and autofocus.
However typing on the wide keyboard can be tiring after a long while. This handphone has no fax capability and the camera's shutter button doesn't perform up to par.
The talk time can be up to 5 hrs while the standby time can be up to 14 days.
N95 has this main feature:
5 megapixel camera with Carl Zeiss optics
Bulit-in GPS mapping
DVD-like quality footage
View emails with attachment
But however i think that if you want a phone that is a good communicator, buy e90.If not, buy N95