I have one for almost one month now, and here is what I think:
1. Yes, it is big, but smaller than 9500. 2. I always use "landscape" mode, E90 takes pictures a lot faster in this mode. 3. I agree, there is a squeaky sound if you squeeze the phone. 4. As for reception quality, it is ok for me.
In forums overseas, the biggest complaint is E90's PIM function and lack of fax. Many feel 9-series's S80 has far better PIM functions than E90's S60. As for fax, even though many use email now, for a lot of business, fax still plays a heavy role in daily operations.