Seriously, I could not imagine a single thing more frustrating than tweeting via T9. And considering that pretty much every device that has a qwerty or touchscreen keyboard also has a Twitter client, I’m struggling to see the real benefit of this.
But rather than boring you with what I think about the service, which is free to receive tweet SMS messages, but cost standard SMS rates to send (for updating your status, DMing other users etc.).
If you’re a Telstra customer keen on this service, just send a blank SMS to 01980 89488 (01980 TWITT).