[xxs]

I thought it'd be T9 - that was a glorious system.

[dontlaugh]

It was useless if your language isn't supported, though. For many, T9 was no longer relevant by the time their language got support.

[aschmelyun]

I still miss it to this day, for basic texting it was the superior system.

[Symbiote]

It's easy to install a custom keyboard on Android, at least.

[xxs]

no real tactile feedback