diff --git a/.gitignore b/.gitignore
index 1811c16..935ff68 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,3 +40,10 @@ nosetests.xml
 
 # git
 *.orig
+
+# pycharm
+.idea*
+
+# rmv stuff
+geist/data/*
+test_repo/*
diff --git a/geist/backends/android.py b/geist/backends/android.py
new file mode 100644
index 0000000..665f3c4
--- /dev/null
+++ b/geist/backends/android.py
@@ -0,0 +1,141 @@
+from __future__ import division, absolute_import, print_function
+
+import androidwebui.device_store as device_store
+import androidwebui.actions as actions
+import logging
+import numpy as np
+import struct
+import subprocess
+import zlib
+from ..finders import Location, LocationList
+from ._common import BackendActionBuilder
+
+logger = logging.getLogger(__name__)
+
+
+class _ActionsTransaction(object):
+    def __init__(self, backend):
+        self._actions_builder = BackendActionBuilder(backend)
+
+    def __enter__(self):
+        return self._actions_builder
+
+    def __exit__(self, *args):
+        self._actions_builder.execute()
+        return False
+
+
+class AndroidToNumpyReader(object):
+    _HEADER = struct.Struct('III')
+
+    def __init__(self, fb, decompress=False):
+        self.h = 0
+        self.w = 0
+        if decompress:
+            wbits = zlib.MAX_WBITS | 16
+            self._fb = zlib.decompress(fb, wbits)
+        else:
+            self._fb = fb
+        self._np = self._read_dump()
+        self._read_w_h_from_header()
+
+    def _read_dump(self):
+        return np.fromstring(self._fb, np.uint8)
+
+    def _read_w_h_from_header(self):
+        self.w, self.h = AndroidToNumpyReader._HEADER.unpack_from(self._np)[:2]
+        logger.debug('read header, w:%s, h%s' % (self.w, self.h))
+
+    def get_rect(self):
+        return 0, 0, self.w, self.h
+
+    def get_image(self):
+        return self._np[12:].reshape((self.h, self.w, 4))[:, :, :3]
+
+
+class GeistAndroidBackend(object):
+    def __init__(self, **kwargs):
+        self.device_id = kwargs.get('device_id', None)
+        logger.debug('New android backend with device %s' % self.device_id)
+        self._devices = device_store.DevicesStore()
+        self._devices.update()
+        logger.debug('%d devices found' % len(self._devices.get_all_devices()))
+
+    def get_device(self, device_id=None):
+        if device_id:
+            device = self._devices.get_by_device_id(device_id)
+        elif self.device_id:
+            device = self._devices.get_by_device_id(self.device_id)
+        else:
+            device = self._devices.get_first_device()
+        return device if device else None
+
+    def actions_transaction(self):
+        return _ActionsTransaction(self)
+
+    def capture_locations(self, device_id=None):
+        _stream = self.do_screencap(device_id)
+        if not _stream:
+            logger.warning('no device found')
+        # use stream/buffer when we go back to actions.image
+        # _buffer = ''.join(list(_stream))
+        # _image = AndroidToNumpyReader(_buffer, True).get_image()
+        _image = AndroidToNumpyReader(_stream, True).get_image()
+
+        h, w = _image.shape[:2]
+        return LocationList([Location(0, 0, w, h, image=_image)])
+
+    def do_screencap(self, device_id=None, quality=1):
+        device = self.get_device(device_id)
+        if not device:
+            return None
+        # actions.image returns fbcompressed image, just use raw image for now
+        # return actions.image(device, quality)
+        process = subprocess.Popen(
+            r'adb -s {adb_id} shell "screencap | gzip -1" | sed "s/\r$//"'.format(
+                adb_id=device.adb_id
+            ),
+            shell=True,
+            stdout=subprocess.PIPE
+        )
+        return process.stdout.read()
+
+    def click(self, px, py, device_id=None):
+        device = self.get_device(device_id)
+        if not device:
+            return None
+        return actions.clickimage(device, px, py)
+
+    def swipe(self, json_data, device_id=None, time=None):
+        device = self.get_device(device_id)
+        if not device:
+            return None
+        return actions.swipeimage(device, json_data, time)
+
+    def press_button(self, button, device_id=None):
+        device = self.get_device(device_id)
+        if not device:
+            return None
+        return actions.button(device, button)
+
+    def getrotation(self, device_id=None):
+        device = self.get_device(device_id)
+        if not device:
+            return None
+        return actions.getrotation(device)
+
+    def button_down(self, button_num):
+        pass
+
+    def button_up(self, button_num):
+        pass
+
+    def move(self, point):
+        x, y = point
+        self.click(x, y)
+
+    def close(self):
+        pass
+
+    def __del__(self):
+        self.close()
diff --git a/prereq.py b/prereq.py
new file mode 100644
index 0000000..838a140
--- /dev/null
+++ b/prereq.py
@@ -0,0 +1,37 @@
+try:
+    get_ipython().magic(u'pylab')
+except (NameError,):
+    pass
+from geist import (
+    GUI,
+    DirectoryRepo,
+    ApproxTemplateFinder,
+    ExactTemplateFinder,
+    TemplateFinderFromRepo,
+)
+from geist.backends.android import GeistAndroidBackend
+from geist.pyplot import Viewer
+
+repo = DirectoryRepo('test_repo')
+backend = GeistAndroidBackend()
+gui = GUI(backend)
+V = Viewer(gui, repo)
+S = V.save
+C = V.show_capture
+F = V.show_found
+R = V.show_repo
+
+top = lambda locations: sorted(locations, key=lambda loc: loc.y)[0]
+bottom = lambda locations: sorted(locations, key=lambda loc: loc.y)[-1]
+left = lambda locations: sorted(locations, key=lambda loc: loc.x)[0]
+right = lambda locations: sorted(locations, key=lambda loc: loc.x)[-1]
+
+approx_finder = TemplateFinderFromRepo(repo, ApproxTemplateFinder)
+exact_finder = TemplateFinderFromRepo(repo, ExactTemplateFinder)
+
+left_swipe = [
+    {"startx": 100, "starty": 500, "endx": 700, "endy": 500},
+]
+right_swipe = [
+    {"startx": 700, "starty": 500, "endx": 100, "endy": 500},
+]