First baby steps for optimizing the app for tablets have been taken. The app is now optimized to make use of the extra screen available for 7" and above tablets like the Nexus 7.
Though Android tablets adoption has been slow, plethora of affordable tablets flooding have opened new user base for Android tablets. If phone is perfect for recording daily expenses on the go, tablets are perfect for viewing. Tablet UI is all focused on showing the data.
More tablet specific features are coming in the future. Do checkout the app on your tablet and provide us feedback.