Why don't the mods intervene when it is something that they agree with, or furthers their interests? Any other thread and this baby would have been shut down and a lot of "idiot" and "ass" comments would have been deleted.
STOP injecting your values into simple questions (I've seen this too many times on MR). The OP didn't ask for views on texting while driving, he asked about a a better way to text on the iPhone.
Personally, I would like to see Apple add speech-to-text, text-to-speech, and voice dialing components to the iPhone. If they team up with an auto manufacturer that features HIDs, the outgoing and incoming texts and digits could be displayed right in front of the driver.
With an all-touchscreen phone like the iPhone, the solutions I mentioned above, along with the Apple Radio Remote would greatly help with safer and more convenient operation.