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+Roadmap
+=======
+
+M1: Dumb watch feature parity
+-----------------------------
+
+The focus for M1 is to get wasp-os both to meet feature parity with a dumb
+watch and to have a bootloader and watchdog strategy that is robust enough
+to allow a PineTime case to be confidently glued shut.
+
+Bootloader
+~~~~~~~~~~
+
+* [X] Basic board ports (PineTime, DS-D6, 96Boards Nitrogen)
+* [X] OTA application update
+* [X] Enable watchdog before starting the application
+* [X] Splash screen
+* [X] Ignore start button for first few seconds
+
+MicroPython
+~~~~~~~~~~~
+
+* [X] Basic board ports (PineTime, DS-D6, 96Boards Nitrogen)
+* [X] Long press reset (conditional feeding of the watchdog)
+
+  * [X] Feed dog from REPL polling loop
+  * [X] Feed dog from a tick interrupt
+
+Wasp-os
+~~~~~~~
+
+* [X] Display driver
+
+  * [X] Display initialization
+  * [X] Bitmap blitting
+  * [X] RLE coder and decoder
+  * [X] Optimized RLE inner loops
+
+* [X] Backlight driver
+* [X] Button driver (polling)
+* [X] Battery/charger driver
+* [X] Simple clock and battery level application
+* [X] Basic (WFI) power saving
+* [X] Implement simple RTC for nrf52
+
+M2: Great developer experience
+------------------------------
+
+The focus for M2 is to make development faster and easier by providing
+a file system and file transfer code. This allows much faster
+development cycles compared to full downloads of frozen modules.
+Additionally support for multiple event-driven applications will be
+added during M2 to further help developers by providing example
+applications.
+
+Bootloader
+~~~~~~~~~~
+
+* [X] OTA bootloader update
+* [X] RTC time measurement whilst in bootloader
+
+MicroPython
+~~~~~~~~~~~
+
+* [X] SPI FLASH driver
+* [X] Enable LittleFS on SPI FLASH (at boot)
+* [X] BLE file transfer
+
+Wasp-os
+~~~~~~~
+
+* [X] Add dd/mm/yyyy support to RTC
+* [X] Button driver (interrupt based)
+* [X] Touch sensor driver
+* [X] Event driven application framework
+* [X] Stopwatch app
+* [X] Settings app
+* [X] PC-hosted simulation platform
+* [X] Documentation
+
+  * [X] Sphinx framework and integration with github.io
+  * [X] Document bootloader protocols
+  * [X] Application writer's guide
+  * [X] Write full docstring documentation for all wasp-os components
+
+* [X] Application Launcher
+* [X] Debug notifications
+* [o] Multi-colour RLE images
+
+  * [X] Optimized "2-bit" RLE encoder and decoder
+  * [ ] Logarithmic RBG332 <-> RGB56516bit color space conversion
+
+M3: Smartwatch
+--------------
+
+At M3 we start to build out full fitness tracking and notification
+functionality.
+
+Bootloader
+~~~~~~~~~~
+
+* [ ] Stay in bootloader after battery run down
+* [ ] Implement power off support (no splash screen)
+
+Micropython
+~~~~~~~~~~~
+
+* [ ] Use SoftDevice sleep logic
+* [ ] Automatically enter SPI flash power saving mode
+
+Wasp-os
+~~~~~~~
+
+* [ ] Enable heart rate sensor
+
+  * [ ] HRS3300 driver
+  * [ ] HRS data post-processing
+  * [ ] Heart rate counter app
+
+* [ ] Notifications
+
+  * [ ] BLE notification protocol
+  * [ ] Notification popups
+  * [ ] Notification app (show notification history)
+  * [ ] Find a recommended Android app
+
+* [ ] Step counting
+
+  * [ ] BMA421 driver
+  * [ ] Step counter app
+
+* [ ] Documentation
+
+  * [ ] Debugging and troubleshooting guide
+  * [ ] Screenshots for bootloader and all applications
+  * [ ] Improve the install guide