I have the E61i, I got it because the buttons was nice and I could actually type a sms faster than I usually did. 1 character = 1 press. The camera is left to be desired. The multitasking... is working, but it still to dog slow. If I ran a java application, I have to restart the phone after I closed it to get speed back and my internet connectivity. I don't know why this happens, but after a reboot (taking the battery out). I can connect to the internet again. I just wish it was a hell of lot faster, perhaps dual core or a higher MHz cpu...?
I'm still not happy, the iPhone appears to scroll faster but I haven't seen it with quick/office or any other office type applications while adobe pdf reader is open and then switching over to sms... Eish, maybe I like things to respond when I press a button.
The phone is not that heavy at all, it looks huge, but it slips in your pocket and nobody will even notice it is there since it is so flat. It does last a long time, the battery is huge.