Our current Android port is in need of improvement, especially combined with modern versions of Android. We'd like to improve the GUI and the input code in particular, but hopefully you also have your own ideas if you've tried the port (if you haven't: do so!). There are some patches already available, and it should be possible to merge code from other projects (such as SDL 2). A native configuration GUI could also be an option.
=== Improving the iPhone/iOS port ===
Technical contact: [[User:LordHoto|Johannes Schickel]], [[User:Sev|Eugene Sandulenko]].
Difficulty level: Medium. You'll need to know C++, Objective C, and have some experience with iOS development. You'll also need a (jailbroken) iOS device, preferably both iPhone and iPad, and the official iOS development environment (on a Mac).
The current iOS port, which we still label as iPhone, is functional but feels not really polished in a number of ways. The port comes from a time when the first two generations of the iPhone were still the top models. This, for example, makes it not as nicely usable on modern iOS devices because of resolution issues. Furthermore, while the gesture input serves as a great way to, for example, change control schemes, it also has some annoying issues. The most prominent example is that the "open global main menu" gesture sometimes causes the main menu to immediately close.
Build wise the iOS port is currently only supported by using a custom toolchain. Supporting the official toolchain and XCode as development environment in '''addition''' to the current toolchain is something we would really like to see. We already have a tool to auto-generate project files for Microsoft Visual Studio. The idea would be to take the currently WIP XCode support and finish it. Building with the official toolchain on command line would also be nice to have.
Essentially, this task requires working on various aspects of the iOS port. This includes graphics, GUI, input handling, but also build related aspects. Ideally, we want our iOS port to feel much smoother for the users, but also for developers working on it.
=== Improve iOS port of ResidualVM ===
Alternatively (or additionally), you could consider adding other accessibility features.