Here are the top 5 reasons I switched from the E61, which is in so many respects a great device.....
5. SLOW DIALING FROM CONTACT LIST: Calling from the "contacts" list is slow. It takes 2-4 seconds to get to the "smiths" when you type "sm" from a list of 1200 contacts (yes, I am a contacts-pack-rat and don't like deleting that random writer I met with one time in New York in 1999). In contrast, the BBerry loads and dials (or emails) from contacts instantly. No wait.
4. WIFI IS SO-SO: I was able to connect to a number of different encrypted and non-encrypted networks, but not always with ease. Managing WIFI connections (and causing applications to use specific connections) requires patience and a visit to a number of different places in settings / wifi, etc.... Not as seamless as it could be. But ok, this is a huge step to have it at all, and yes, the BBerry doesn't have it. My point here is that I bought the thing thinking that the WIFI would cause me to be switching between VOIP and GSM calls with ease and it is just not there yet. The WIFI was a nice add, but not beneficial enough to keep me in the camp.
3. I MISS MY TRACKWHEEL: I love the trackwheel on the BBerry. It makes things so easy for one-handed use. The E61 has a center-mounted joystick thingy. It works well for web browsing and two-handed navigation through the device's OS, but I prefer the trackwheel.
2. VOLUME: The E61 just isn't loud enough for noisy environment calling. There were many times even in the car with the AC on that I couldn't get the volume up high enough.
1. SYNC ALL: The E61 does have the ability to run Blackberry's Connect software, which gives it some access to BES features--but not all. For example, it only sync's calendar entries over the air--not contacts, tasks, or notes like a true Blackberry device does. I am sure that this is some (Microsoft'ish) way to give their own devices a leg up in the marketplace, but to me, it is a cop-out. If you believe in your devices, make great devices and let them stand on their own--without cheating your software customers. But, I guess in my case it worked--the E61 is going on craigslist this weekend.