Well, I was one of the few who had a really terrible (awful, horrific) experience with the Tour, so going from that to the EVO is indescribable, I've never had so much instant gratification from a phone.
My gmail and yahoo mail accounts work just fine. I still have my Tour, and during the first couple of days, I watched each phone closely when the mail was pushed through, and even sent myself mail from my netbook. The gmail was pushed faster on the EVO than the Tour, and the Yahoo was pushed through at around the same time.
Before I had the Tour, I had a Blackberry Curve, which I loved and truly believe is the pinnacle of the Blackberry Experience.
That said, equal strengths of both phones:
Sturdy build (the Tour had an awful batter door, but the rest of the device was pretty hefty)
Mail notification
Pros of the EVO versus the Tour:
No battery pulling. None.
Instantaneous installing and uninstalling of apps. No more waiting for the phone to reboot itself. You have not experienced joy until you have downloaded and are running an app in less than a minute.
Superior web browsing experience--I no longer have to lug my netbook around with me if I know I'm going to be out all day.
Superior media experience--watching videos, playing games, and listening to music is flawless on the EVO. I stream radio from Sprint TV through my car stero, and I experience absolutely NO lag, or refreshing or anything like that.
Faster, seamless, and more user friend OS. I know that Android has a reputation for being "difficult", but honestly, I knew how to use the phone right off the bat. I feel like if you have any previous experience with a smartphone, you should be right at home with the EVO.
I dropped calls often with the bb, the gps was off most of the time, and I hit a lot more "dead spots". Have not experienced any of those issues with the EVO, call quality and data speeds are definitely superior.
Cons of the EVO versus the Tour:
Exclusive BBM.
I consider myself a heavy user, I have several messaging apps running at all times, and I text, Facebook, and Tweet all day long. The EVO battery just lasts the day. Before the 5.0 update on the Tour, I would be able to get about 2 or 3 days out of it's battery. The update killed my battery, and I could no longer get more than about 3 hours out of it from heavy use. Knowing what the Blackberry is normally capable of battery wise, I will of course give them the point on this issue.
Facebook notification--really sucks. I mean, really, really suck. If I didn't have my FB tied to my gmail account, I would never get any type of notifications at all. In comparison, the BB FB notification was flawless and user friendly.
However, the various twitter apps are on par with BB.
Phone size--I love the EVOs screen, but sometimes the phone feels a little too large for me, and I forget that it's not as compact as the BB when I go to pick it up, which sometimes causes me to slip up and almost drop it. I just put a case on it today so hopefully that will help me to remember what kind of powerful phone I am working with, but it's a little more difficult than I anticipated carrying around a large device.
Still in the end, I would take EVOs large frame and form factor over the BB. Once you get a taste of that screen, you'll never want to go back.
QWERTY keyboard--Swype saved my life, and I just don't know how happy I would be with a touchscreen only device without it. BB's keyboard is superior. Period. But I think in a few weeks (or even days, dealing with the swype) I might be able to manage better on the virtual keyboard than a physical keyboard. Even now, I'm really comfortable with Swype, and I'm concerned that I will stop being able to type on a real QWERTY all together.
Standouts on the EVO:
The apps! Handcent is particularly amazing, and I never want to go back to a boring text messaging app again.
GTasks--I emailed all of my BB memo pad entries to my gmail account, which I then turned into gmail tasks, which then synced itself with the gTask app on my phone. An easy transfer to me, and I love being able to have all of tasks instantly synced to my gmail account.
Customization, various homescreens. My husband I both have EVOs, and our two phones could not be more different, but they both are custom to suit both of our needs.
I've only had my EVO for a little over a week, but you could not pay me to go back to BB under any circumstance. True story, I was afraid to use my EVO in public because I didn't have any sort of screen protectors or case on it, so I carried my Tour around. I went to Target to do some quick shopping and left my EVO in the car, and once inside, tried to take some pics of some items and send it to my daughter. The Tour, spazzed out and nearly bricked itself from the effort. The spinning clock thing never left the screen, and I eventually let it run it's battery down and have not picked it up since.
Good riddance. Blackberry is like AOL dial up, while the EVO/Android is like discovering broadband. There is just no turning back.