I just wanted to point out two good links relating to android design.
The first is a set of slide by Hervé Mischler on the subject of porting your iOS designs to android. Unfortunately the slides are light on text, and there are no speaker notes or recorded audio. Never less, they only take a few moments to look through and there is some good information in there:
The second link is the recent android design in action episode relating to responsive design. There are a bunch of good tips and examples in there if you are interested in scaling your app up from phones to tablets: