diff --git a/configs/open1788/README.txt b/configs/open1788/README.txt
index cc23ccb773c..29c80822ce7 100644
--- a/configs/open1788/README.txt
+++ b/configs/open1788/README.txt
@@ -342,6 +342,10 @@ CONFIGURATION
        in FLASH.  But loading the nuttx ELF does not harm the nuttx_user.elf
        in FLASH.  Conclusion:  Always load nuttx_user.elf before nuttx.
 
+       Just to complicate matters, it is sometimes the case that you need
+       load objects twice to account for write failures.  I have not yet
+       found a simple foolproof way to reliably get the code into FLASH.
+
   nsh
   ---
     Configures the NuttShell (nsh) located at examples/nsh.  The
diff --git a/configs/open1788/kernel/Makefile b/configs/open1788/kernel/Makefile
index 9cf19637565..d3a47e7389b 100644
--- a/configs/open1788/kernel/Makefile
+++ b/configs/open1788/kernel/Makefile
@@ -107,7 +107,7 @@ depend: .depend
 
 clean:
 	$(call DELFILE, nuttx_user.elf)
-	$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.elf")
+	$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.*")
 	$(call DELFILE, "$(TOPDIR)$(DELIM)User.map")
 	$(call CLEAN)
 
diff --git a/configs/sam3u-ek/kernel/Makefile b/configs/sam3u-ek/kernel/Makefile
index b58bb118c38..5ce23a53921 100644
--- a/configs/sam3u-ek/kernel/Makefile
+++ b/configs/sam3u-ek/kernel/Makefile
@@ -1,7 +1,7 @@
 ############################################################################
 # configs/sam3u-ek/kernel/Makefile
 #
-#   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+#   Copyright (C) 2011, 2013 Gregory Nutt. All rights reserved.
 #   Author: Gregory Nutt <gnutt@nuttx.org>
 #
 # Redistribution and use in source and binary forms, with or without
@@ -107,7 +107,7 @@ depend: .depend
 
 clean:
 	$(call DELFILE, nuttx_user.elf)
-	$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.elf")
+	$(call DELFILE, "$(TOPDIR)$(DELIM)nuttx_user.*")
 	$(call DELFILE, "$(TOPDIR)$(DELIM)User.map")
 	$(call CLEAN)
 
diff --git a/configs/sim/ostest/defconfig b/configs/sim/ostest/defconfig
index 60b1fb5a472..bcfadabd723 100644
--- a/configs/sim/ostest/defconfig
+++ b/configs/sim/ostest/defconfig
@@ -40,7 +40,6 @@ CONFIG_HOST_LINUX=y
 #
 CONFIG_DEBUG=y
 CONFIG_DEBUG_VERBOSE=y
-# CONFIG_SYSLOG_ENABLE is not set
 
 #
 # Subsystem Debug Options
@@ -74,7 +73,6 @@ CONFIG_ARCH_SIM=y
 # CONFIG_ARCH_Z16 is not set
 # CONFIG_ARCH_Z80 is not set
 CONFIG_ARCH="sim"
-CONFIG_BOARD_LOOPSPERMSEC=100
 
 #
 # Simulation Configuration Options
@@ -103,6 +101,8 @@ CONFIG_BOARD_LOOPSPERMSEC=100
 #
 # Board Settings
 #
+CONFIG_BOARD_LOOPSPERMSEC=100
+# CONFIG_ARCH_CALIBRATION is not set
 CONFIG_DRAM_START=0x00000000
 CONFIG_DRAM_SIZE=0
 
@@ -133,6 +133,7 @@ CONFIG_ARCH_BOARD="sim"
 #
 # RTOS Features
 #
+# CONFIG_BOARD_INITIALIZE is not set
 CONFIG_MSEC_PER_TICK=10
 CONFIG_RR_INTERVAL=0
 # CONFIG_SCHED_INSTRUMENTATION is not set
@@ -149,8 +150,8 @@ CONFIG_MUTEX_TYPES=y
 # CONFIG_FDCLONE_DISABLE is not set
 # CONFIG_FDCLONE_STDIO is not set
 CONFIG_SDCLONE_DISABLE=y
-# CONFIG_SCHED_WORKQUEUE is not set
 CONFIG_SCHED_WAITPID=y
+# CONFIG_SCHED_STARTHOOK is not set
 # CONFIG_SCHED_ATEXIT is not set
 # CONFIG_SCHED_ONEXIT is not set
 CONFIG_USER_ENTRYPOINT="ostest_main"
@@ -160,9 +161,7 @@ CONFIG_DISABLE_OS_API=y
 # CONFIG_DISABLE_PTHREAD is not set
 # CONFIG_DISABLE_SIGNALS is not set
 # CONFIG_DISABLE_MQUEUE is not set
-# CONFIG_DISABLE_MOUNTPOINT is not set
 # CONFIG_DISABLE_ENVIRON is not set
-CONFIG_DISABLE_POLL=y
 
 #
 # Signal Numbers
@@ -199,6 +198,7 @@ CONFIG_PTHREAD_STACK_DEFAULT=8192
 #
 # Device Drivers
 #
+CONFIG_DISABLE_POLL=y
 CONFIG_DEV_NULL=y
 # CONFIG_DEV_ZERO is not set
 # CONFIG_LOOP is not set
@@ -249,6 +249,7 @@ CONFIG_SERIAL=y
 #
 # File system configuration
 #
+# CONFIG_DISABLE_MOUNTPOINT is not set
 # CONFIG_FS_RAMMAP is not set
 # CONFIG_FS_FAT is not set
 # CONFIG_FS_NXFFS is not set
@@ -257,6 +258,7 @@ CONFIG_SERIAL=y
 #
 # System Logging
 #
+# CONFIG_SYSLOG_ENABLE is not set
 # CONFIG_SYSLOG is not set
 
 #
@@ -267,6 +269,7 @@ CONFIG_SERIAL=y
 #
 # Memory Management
 #
+# CONFIG_MM_MULTIHEAP is not set
 # CONFIG_MM_SMALL is not set
 CONFIG_MM_REGIONS=1
 # CONFIG_GRAN is not set
@@ -301,6 +304,8 @@ CONFIG_LIB_HOMEDIR="/"
 # CONFIG_EOL_IS_BOTH_CRLF is not set
 CONFIG_EOL_IS_EITHER_CRLF=y
 # CONFIG_LIBC_EXECFUNCS is not set
+CONFIG_POSIX_SPAWN_PROXY_STACKSIZE=1024
+CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=2048
 # CONFIG_LIBC_STRERROR is not set
 # CONFIG_LIBC_PERROR_STDOUT is not set
 CONFIG_ARCH_LOWPUTC=y
@@ -309,8 +314,9 @@ CONFIG_LIB_SENDFILE_BUFSIZE=512
 # CONFIG_ARCH_OPTIMIZED_FUNCTIONS is not set
 
 #
-# Non-standard Helper Functions
+# Non-standard Library Support
 #
+# CONFIG_SCHED_WORKQUEUE is not set
 # CONFIG_LIB_KBDCODEC is not set
 
 #
@@ -332,7 +338,6 @@ CONFIG_LIB_SENDFILE_BUFSIZE=512
 #
 # CONFIG_EXAMPLES_BUTTONS is not set
 # CONFIG_EXAMPLES_CAN is not set
-# CONFIG_EXAMPLES_CDCACM is not set
 # CONFIG_EXAMPLES_COMPOSITE is not set
 # CONFIG_EXAMPLES_DHCPD is not set
 # CONFIG_EXAMPLES_ELF is not set
@@ -348,7 +353,6 @@ CONFIG_LIB_SENDFILE_BUFSIZE=512
 # CONFIG_EXAMPLES_MM is not set
 # CONFIG_EXAMPLES_MOUNT is not set
 # CONFIG_EXAMPLES_MODBUS is not set
-# CONFIG_EXAMPLES_NETTEST is not set
 # CONFIG_EXAMPLES_NSH is not set
 # CONFIG_EXAMPLES_NULL is not set
 # CONFIG_EXAMPLES_NX is not set
@@ -387,8 +391,9 @@ CONFIG_EXAMPLES_OSTEST_RR_RUNS=10
 # CONFIG_EXAMPLES_WATCHDOG is not set
 
 #
-# Interpreters
+# Graphics Support
 #
+# CONFIG_TIFF is not set
 
 #
 # Interpreters
@@ -418,11 +423,7 @@ CONFIG_EXAMPLES_OSTEST_RR_RUNS=10
 # CONFIG_NETUTILS_WEBCLIENT is not set
 
 #
-# ModBus
-#
-
-#
-# FreeModbus
+# FreeModBus
 #
 # CONFIG_MODBUS is not set
 
@@ -477,3 +478,7 @@ CONFIG_EXAMPLES_OSTEST_RR_RUNS=10
 # Sysinfo
 #
 # CONFIG_SYSTEM_SYSINFO is not set
+
+#
+# USB Monitor
+#