I am now about a month in running iOS4 on the iPhone 3G and it is slowly driving me crazy! If anyone knows how to revert back to 3.1.3 please let me know!
Sure there are things I love about iOS4… the camera zoom, unified Inbox, the SMS character count but at this point I’d give them up for the speed I use to have.
Tapping SMS takes an age for messages to present themselves, and then even longer to create a new message, apps run very slow. E-mails take forever to come up, and on occasions even though a preview of an e-mail can be viewed, to go into the e-mail presents no content. Only a complete reboot will fix this.
The calendar is sluggish to switch between views and at times appears to hang.
I have been looking daily for new updates that I hope will improve the performance, but nada! 4.0.1 has made no difference.
Now that Apple have dealt with the iPhone 4 reception issues, I hope they deal quickly with iOS4 on the 3G. There was plenty of life in it before iOS4 crippled it.