diff --git a/hamid.cabal b/hamid.cabal
--- a/hamid.cabal
+++ b/hamid.cabal
@@ -1,34 +1,36 @@
 
-name:                   hamid
-version:                0.7
-synopsis:               Binding to the OS level MIDI services
+name:               hamid
+version:            0.8
+cabal-version:      >= 1.6
+synopsis:           Binding to the OS level MIDI services (fork of system-midi).
 
-description:            Partial implementation of the MIDI 1.0 standard to communicate
-                        with physical or virtual MIDI devices, eg. MIDI keyboards.
-                        Supported operating systems are Mac OS X and Win32 (not tested
-                        under Leopard and Vista). See also the alsa-midi library for similar
-                        function under Linux. Please note that there was no effort made (yet) to
-                        be compatible with the other existing Haskell MIDI libraries.
+description:        Cross-platform binding to Midi libraries. 
+                    Supports OS X and Windows (limited testing).
+                    
+                    The API use the same represeentation as Codec.Midi so system
+                    and file I/O have the same interface.
 
-                        Fork by Hans Höglund, adding support for Codec.Midi types et al.
+                    This package was based on the system-midi package.
 
-license:                BSD3
-license-file:           LICENSE
-author:                 Balazs Komuves
-copyright:              (c) 2008 Balazs Komuves
-maintainer:             hans@hanshoglund.se
-stability:              Unstable
-category:               Sound, System
-tested-with:            GHC == 6.8.2
-cabal-version:          >= 1.2
-build-type:             Simple
+license:            BSD3
+license-file:       LICENSE
+author:             Balazs Komuves, Hans Hoglund
+copyright:          (c) 2008-2012 Balazs Komuves, Hans Hoglund
+maintainer:         Hans Hoglund <hans@hanshoglund.se>
+stability:          Stable
+category:           Sound, System
+build-type:         Simple
 
-extra-source-files:     examples/monitor.hs, 
-                        examples/chords.hs, 
-                        examples/playmidi.hs,
-                        examples/SMF.hs, 
-                        examples/GM.hs
+extra-source-files: examples/monitor.hs, 
+                    examples/chords.hs, 
+                    examples/playmidi.hs,
+                    examples/SMF.hs, 
+                    examples/GM.hs
 
+source-repository head
+  type:             git
+  location:         git://github.com/hanshoglund/hamid.git
+  
 library
     build-depends:
         base        >= 4 && < 5,
@@ -45,8 +47,6 @@
         TypeSynonymInstances,
         FlexibleInstances,
         EmptyDataDecls
-    ghc-options:
-        -threaded
 
     if os(darwin)
         other-modules:
@@ -68,7 +68,7 @@
         extra-libraries:
             winmm
 
-    if !os(darwin) && !   os(windows)
+    if !os(darwin) && !os(windows)
         other-modules:
             System.MIDI.Placeholder
 
diff --git a/src/System/MIDI/Placeholder.hs b/src/System/MIDI/Placeholder.hs
--- a/src/System/MIDI/Placeholder.hs
+++ b/src/System/MIDI/Placeholder.hs
@@ -30,82 +30,30 @@
     
     ) where
 
-import Data.Word
 import System.MIDI.Base
 
--- | The opaque data type representing a MIDI source.
-data Source 
-
--- | The opaque data type representing a MIDI destination.
-data Destination 
-
--- | The opaque data type representing a MIDI connection.
-data Connection 
-
--- Placeholder
-class MIDIHasName c where
-
--- | Enumerates the MIDI sources present in the system.
-enumerateSources :: IO [Source]
-enumerateSources = undefined
-
--- | Enumerates the MIDI destinations present in the system.
-enumerateDestinations :: IO [Destination]
-enumerateDestinations = undefined
-
--- | These functions return the name, model and manufacturer of a MIDI source \/ destination.
--- 
--- Note: On Win32, only `getName` returns a somewhat meaningful string at the moment.
-getName :: MIDIHasName a => a -> IO String
-getModel :: MIDIHasName a => a -> IO String
-getManufacturer :: MIDIHasName a => a -> IO String
-
-getName = undefined
-getModel = undefined
-getManufacturer = undefined
-
--- | 
--- Opens a MIDI Source.
--- There are two possibilites to receive MIDI messages. The user can either support a callback function,
--- or get the messages from an asynchronous buffer. However, mixing the two approaches is not allowed.
-openSource :: Source -> Maybe ClientCallback -> IO Connection 
-openSource = undefined
+data Source                 = Source      deriving (Eq, Ord, Show)
+data Destination            = Destination deriving (Eq, Ord, Show)
+data Connection             = Connection  deriving (Eq, Ord, Show)
 
--- | Opens a MIDI Destination.
-openDestination :: Destination -> IO Connection 
-openDestination = undefined
+enumerateSources            = noImpl
+enumerateDestinations       = noImpl
 
--- | Gets the next event from a buffered connection (see also `openSource`)
-getNextEvent :: Connection -> IO (Maybe MidiEvent)
-getNextEvent = undefined
+class MIDIHasName a where
+getName                     = noImpl 
+getManufacturer             = noImpl 
+getModel                    = noImpl 
+openSource                  = noImpl
+openDestination             = noImpl
+close                       = noImpl
+send                        = noImpl
+sendSysEx                   = noImpl
+start                       = noImpl
+stop                        = noImpl
 
--- | Gets all the events from the buffer (see also `openSource`)
-getEvents :: Connection -> IO [MidiEvent]
-getEvents = undefined
-        
--- | Sends a short message. The connection must be a `Destination`.
-send :: Connection -> MidiMessage -> IO ()
-send = undefined
+getNextEvent                = noImpl
+getEvents                   = noImpl
+currentTime                 = noImpl
 
--- | Sends a system exclusive message. You shouldn't include the starting \/ trailing bytes 0xF0 and 0xF7.
--- 
--- Note: On Win32, the connection must be a `Destination`
-sendSysEx :: Connection -> [Word8] -> IO ()
-sendSysEx = undefined
- 
--- | Starts a connection. This is required for receiving MIDI messages, and also for starting the clock.
-start :: Connection -> IO ()
-start = undefined
+noImpl = error "Not implemented"
 
--- | Stops a connection.
-stop :: Connection -> IO ()
-stop = undefined
-    
--- | Closes a MIDI Connection.
-close :: Connection -> IO ()
-close = undefined
- 
--- | Returns the time elapsed since the last `start` call, in milisecs.
-currentTime :: Connection -> IO Word32
-currentTime = undefined
-