Currently, I only plan to port over Portfolio Management feature from Desktop version JStock to Android version JStock.
This is because, I realize there a quite a number of free and good Stock Market related apps out there. For example, Bloomberg for Smartphone (https://market.android.com/details?id=com.bloomberg.android&hl=en)
However, I feel that their portfolio management feature is not as comprehensive as JStock's. That's where I try to make jstock-android fill in the gap. :)
Currently, jstock-android is under active development. You are welcomed to participate in it.