I constantly Search Google and use the Auto-Complete feature allot and use it to check out the SERP's on my mobile device for some of my local clients products and services. Most of the keywords I searched for were only 1 to 2 words long as the Auto Complete feature populated the best keywords for the query.I came up with a list of these mobile keywords
As for the Mobile Ads there was a slight increase in the clicks for the past month. I need to do more optimizing and I will see what happens.
If you have a Local Business Start optimizing for Mobile Search with shorter keywords instead of Long-Tail as the Auto Complete feature shows these more and it seems that is what people are clicking on.