Created Roadmap (markdown)

Roadmap.md

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+## Goals
+
+Normal emulator stuff. Games work, etc.
+
+### Cross-platform Support
+
+Linux support is slowly progressing, but really needs a strong contributor to
+fully support. OS X support is highly unlikely unless Apple gets Vulkan
+support.
+
+## Non-Goals
+
+There's a lot that *could* be done in the project, but there are many things
+that *shouldn't* be.
+
+### Pixel-perfect Accuracy
+
+A lot of corners are cut for one reason or another: performance, lack of
+understanding, lack of documentation, etc. Getting something that perfectly
+matches the output on a real console isn't really possible with our approach.
+Conversely, this allows much more freedom to provide higher-quality or faster
+implementations.
+
+### Xbox Live Connectivity
+
+Xenia will never be able to connect to the real Xbox Live network. A simulated
+Live-like network is possible, however anything that interfaces with the
+official Microsoft services is not only not possible, but not something the
+project seeks to enable.
+
+### Game Servers
+
+Some multiplayer games are peer-to-peer, however many have some server component
+required for either matchmaking or actual session hosting. Though it'd be
+possible to work with such homebrew servers if projects sprung up to support
+them Xenia itself will not be attempting to do so.
+
+### Original Xbox Backwards Compatibility
+
+Microsoft released a compatibility layer that enabled original Xbox games to run
+on the 360. Though likely feasible to get running under Xenia, it's not a goal.
+There's likely to be a lot of trickery going on that most games don't do, and
+distribution of the compatibility layer isn't possible.
+
+## Dreams
+
+### VR
+
+Figure that out :)
+
+### Simulated Xbox Live Network
+
+Implement the system APIs for friend's list, leaderboards, etc. Reusing Steam or
+some other service would be ideal.