If its for html/imap emails use only without a requirement for the back-end functionality of a BES, then it would be an E71 for me.
The symbian platform offers so many applications and tools without any of the proprietary lock-ins of the Blackberry or iPhone.
The iPhone is a really nice toy but the touch screen coupled with the short battery life rules it out for corporate email. Get an iPod touch instead for the fun stuff.
The Blackberry is a very good tool for enterprise email but as a phone its not so good and application wise it is very restrictive.
The E71 is a good mix of the two. Small and compact, good keyboard, legendary Nokia phone capabilities and reliability, a flexible browser and will run a myriad of apps including tom tom.
I have all three devices in use daily.
Agreed with Sp!ke...
E71 all the way. I use Seven Beta program for push email and it's free. It works using IMAP on my private and business email address.....and the E71 is just so easy to use.
Link - http://community.seven.com/main.php
Mark.