diff --git a/firmware/target/hosted/sdl/sim-ui-defines.h b/firmware/target/hosted/sdl/sim-ui-defines.h
index c44fea54b7..db777e7821 100644
--- a/firmware/target/hosted/sdl/sim-ui-defines.h
+++ b/firmware/target/hosted/sdl/sim-ui-defines.h
@@ -404,6 +404,13 @@
 #define UI_LCD_POSX                 101
 #define UI_LCD_POSY                 195
 
+#elif defined(MPIO_HD300)
+#define UI_TITLE                    "MPIO HD300"
+#define UI_WIDTH                    286 /* width of GUI window */
+#define UI_HEIGHT                   524 /* height of GUI window */
+#define UI_LCD_POSX                 64
+#define UI_LCD_POSY                 127
+
 #elif defined(APPLICATION)
 #define UI_TITLE                    "Rockbox"
 #define UI_LCD_POSX                 0
diff --git a/uisimulator/bitmaps/UI-mpiohd300.bmp b/uisimulator/bitmaps/UI-mpiohd300.bmp
new file mode 100644
index 0000000000..60dac62b8f
Binary files /dev/null and b/uisimulator/bitmaps/UI-mpiohd300.bmp differ
diff --git a/uisimulator/buttonmap/SOURCES b/uisimulator/buttonmap/SOURCES
index 7ab80da5d3..c9955d408f 100644
--- a/uisimulator/buttonmap/SOURCES
+++ b/uisimulator/buttonmap/SOURCES
@@ -63,5 +63,7 @@ samsung-yh820_yh92x.c
 pbell-vibe500.c
 #elif CONFIG_KEYPAD == MPIO_HD200_PAD
 mpio-hd200.c
+#elif CONFIG_KEYPAD == MPIO_HD300_PAD
+mpio-hd300.c
 #endif
 #endif /* SIMULATOR */
diff --git a/uisimulator/buttonmap/mpio-hd300.c b/uisimulator/buttonmap/mpio-hd300.c
new file mode 100644
index 0000000000..454e3a6d6f
--- /dev/null
+++ b/uisimulator/buttonmap/mpio-hd300.c
@@ -0,0 +1,82 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2010 Michael Leslie
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+
+#include <SDL.h>
+#include "button.h"
+#include "buttonmap.h"
+
+int key_to_button(int keyboard_button)
+{
+    int new_btn = BUTTON_NONE;
+    switch (keyboard_button)
+    {
+
+        case SDLK_UP:
+            new_btn = BUTTON_UP;
+            break;
+        case SDLK_DOWN:
+            new_btn = BUTTON_DOWN;
+            break;
+
+        case SDLK_LEFT:
+            new_btn = BUTTON_LEFT;
+            break;
+        case SDLK_RIGHT:
+            new_btn = BUTTON_RIGHT;
+            break;
+
+        case SDLK_SPACE:
+        case SDLK_ESCAPE:
+	  new_btn = BUTTON_MENU;
+	  break;
+
+        case SDLK_RETURN:
+	  new_btn = BUTTON_ENTER;
+	  break;
+
+        case SDLK_p:
+            new_btn = BUTTON_PLAY;
+            break;
+
+        case SDLK_r:
+            new_btn = BUTTON_REC;
+            break;
+    }
+    return new_btn;
+}
+
+struct button_map bm[] = {
+    { SDLK_LEFT,     98, 312, 15, "Rew" },
+    { SDLK_RIGHT,   186, 312, 15, "FF" },
+
+    { SDLK_ESCAPE,   90, 364, 40, "Menu" },
+    { SDLK_RETURN,  196, 364, 40, "Enter" },
+
+    { SDLK_r,        98, 410, 15, "Rec" },
+    { SDLK_p,       186, 410, 15, "Play/Stop" },
+
+    { SDLK_UP,      143, 315, 40, "Up" },
+    { SDLK_DOWN,    143, 415, 40, "Down" },
+
+    { SDLK_h,       116,  52, 20, "Hold" },
+    { 0, 0, 0, 0, "None" }
+};