I’ve had a PS3 since shortly after launch. They’ve done next to nothing to improve their network speeds from their servers. I don’t have any speed issues with Steam or xbox. If they were going to improve their network infrastructure they would have done it by now. I don’t think the PSN network speed is going to suddenly catach up when they launch a new console.
I’ve made the switch to Android or iOS user a long time ago. I’ve never thought the virtual keyboard as good, just good enough. I was able to type messages one handed on a blackberry, or type a message without ever looking at the keyboard. I’ve never regained the speed or accuracy that I had on my BB, but I’d never trade the functionality use a BB again.