<center><img src="http://www.aeonity.com/xuanming/images/phone_gap.jpg" border="0"></center>
I wrote an short article on my blog regarding how to create mobile games using a combination of Construct 2 and a HTML5-to-native-mobile-app software called PhoneGap. The guide can be found at this link. Note: This is specifically written for Android phones, but PhoneGap also supports iPhone and Blackberry platforms.
Hope this helps somebody who is toying with the idea of making mobile games using Construct 2. Let me know if you run into any problems with the guide.