I used to own the E70 and enjoyed it when I had it but after using the E71 it's just so much more phone than the E70.

At the end of the day it depends on your needs, whether you're just looking for a messaging device or if you need corporate email support, whether your company supports MS Active Sync or Blackberry BES, do you need calendar support, do you want to sync with a remote calendar such as Google Calendar? Do you prefer video/multimedia capability over messaging? How much do you want to spend? Are you looking for a data plan? Is GPS important?

There's so much that today's phones can do so there's one out there that will work for your needs.