Like many developers out there, I have been tinkering with building my own android apps.  Below is a nice article about how to create a quality app (not like some I have seen).

http://android-developers.blogspot.com/2012/10/building-quality-tablet-apps.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+blogspot%2FhsDu+%28Android+Developers+Blog%29