Something like VLINGO would be great. I used it a lot on my E7, especially when walking on the street and looking down and typing wasn't the best way to get a quick text out. Walking and just speaking into the phone "Text James Smith, Message, Don't worry I'm on my way" was just superb.

I know there is that Quick Voice Keyboard app, but it is not the same as the example I mention, and on the occasions I've tried it, it just doesn't work.

So, VLINGO. Not exactly Siri, but it would be a big step forward