[Atrix 4G Android Development] tan G:
this is what inside the build.prop file

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=4.5.2A-5_OLH-3
ro.build.display.id=olympus_hktw-userdebug 2.3.4 4.5.2A-5_OLH-3 110614 test-keys
ro.build.version.incremental=110614
ro.build.version.sdk=10
ro.build.version.codename=REL
ro.build.version.release=2.3.4
ro.build.date=Tue Jun 14 17:19:39 CST 2011
ro.build.date.utc=1308043179
ro.build.type=userdebug
ro.build.user=xphk86
ro.build.host=zch68lnxdroid45
ro.build.tags=test-keys
ro.product.model=MB860
ro.product.brand=MOTO
ro.product.name=olympus
ro.product.device=olympus
ro.product.board=olympus
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=motorola
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=tegra
# ro.build.product is obsolete; use ro.product.device
ro.build.product=olympus
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=olympus_hktw-userdebug 2.3.4 4.5.2A-5_OLH-3 110614 test-keys
ro.build.fingerprint=MOTO/olympus/olympus:2.3.4/4.5.2A-5_OLH-3/110614:userdebug/test-keys
# end build properties
#BEGIN ikolympus-145 ndkj78 04/29/10 add properties for RIL
rild.libpath=/system/lib/libmoto_ril.so
#ikolymp-874 increment channels to support EFEM
persist.ril.mux.noofchannels=9
persist.ril.mux.ttydevice=/dev/ttyHS3
#Begin IKOLYMP-2372 jqc837 31.aug.10 Short music file set as ringtone does not play in loop when receiving incoming call
#Begin IKOLYMP-425 jqc837 31.aug.10 ro.cdma.home.operator.numeric should not be set
ro.telephony.call_ring.multiple=false
#End IKOLYMP-2372 IKOLYMP-425
#added property for modem ikolympus-203
persist.ril.modem.ttydevice=/dev/ttySPI0
#added property for default RIL mode to be UMTS ikolymp2180
persist.ril.modem.mode=2
#IKOLYMP-4257 add feature GENERIC_OEM_HOOK flag
#IKOLYMP-4894 add feature MUX_PANIC_NOTIF flag
#IKOLYMP-5747 add feature BDTSE_FOR_DTMF flag
#IKOLYMP-7714 Remove feature BDTSE_FOR_DTMF. Revert to DTSE for DTMF
#IKOLYMP-8033 Restore BDTSE_FOR_DTMF. Remove GENERIC_OEM_HOOK (no longer used)
persist.ril.features=0x24
#IKOLYMP-9894 Increase the PPP max failure threshold to 12
#IKOLYMP-10006 Increase the PPP max failure threshold to 16
persist.ril.pppd.start.fail.max=16
#end

ro.hdmi.mirror.enable=false
ro.hdmi.default.app=
hw.overlay.path.config=
ro.default_usb_mode=2

# temporary enable AT&T NSUI feature from system prop.
# This should be removed once Flex is enabled in Olympus.
ro.mot.FTR.NSUI=true

# for larger screen support
# 3.75" WVGA == 248dpi
# 4.0" qHD == 275dpi
ro.sf.lcd_density=240
dalvik.vm.heapsize=42m

# Enable FP sensor
ro.mot.hw.fingerprint.enable=1

# required for UDD backup tcmd
ro.mot.hw.calibratedImager=1

# Time between scans in seconds. Keep it high to minimize battery drain.
# This only affects the case in which there are remembered access points,
# but none are in range.
wifi.supplicant_scan_interval = 45

#For enabling Wispr Feature
ro.mot.wifi.hotspot=1

# To enable Google Froyo Tethering (USB & WIFI hotspot)
ro.tether.denied=false

# To set wifi (AP) driver's firmware path
ro.wifi-ap.fw-path=/system/etc/firmware/wifi/sdio-g-cdc-roml-reclaim-wme-apsta-idsup-idauth.bin

# Enabling EONS feature IKOLYMP-1962
persist.cust.tel.eons=1

# CR IKSTABLEFOURV-8174
# our HTML browser (not WAP browser )
ro.mot.hw.uaprof=http://uaprof.motorola.com/phoneconfig/motomb860/Profile/motomb860.rdf
# end of IKSTABLEFOURV-8174

ro.opengles.version = 131072

# For docked touchpad keyboard map
android.keylayout.evfwd=/system/usr/keylayout/evfwd.kl
android.keychar.evfwd=/system/usr/keychars/evfwd.kcm.bin

# To send 70 touch events per second
windowsmgr.max_events_per_sec = 70
debug.mot.extwmlog=0
debug.mot.extamlog=0

#proximit sensor screen off delay
mot.proximity.delay=450

#proximit sensor disable touch distance
mot.proximity.distance=60

# Enable HAC support
ro.mot.hw.HAC=1

# Do not abort on "illegal" class names, IKOLYMP-9026
ro.mot.dalvik.warnonly=true

# BEGIN Motorola, cmw467, 01/13/2011, IKSTABLEFOUR-3758, Disble hotspot when network in not HighSpeed, FID 36113
ro.mot.toggle.hotspot=true
# END

# BEGIN Motorola, a23250, 08-Nov-2010, IKMAIN-7258
ro.mot.bindervm.config = 84
# END IKMAIN-7258

#
# ADDITIONAL_BUILD_PROPERTIES
#
rild.libpath=/system/lib/libmoto_ril.so
persist.ril.mux.retries=500
persist.ril.mux.sleep=2
ro.kernel.android.ril=yes
ro.config.notification_sound=OnTheHunt.ogg
ro.config.alarm_alert=Alarm_Classic.ogg
ro.default_usb_mode=0
ro.com.google.gmsversion=2.3_r4
ro.config.sync=no
ro.browser.useragent=0
gsm.sim.mot.simswap=1
ro.config.sync=no
ro.media.camcorder.720p=mp4,h264,30,12000000,aac,128000,44100,2
ro.media.camcorder.d1NTSC=mp4,h264,30,6000000,aac,128000,44100,2
ro.media.camcorder.vga=mp4,h264,30,4000000,aac,128000,44100,2
ro.media.camcorder.cif=mp4,h264,30,1500000,aac,128000,44100,2
ro.media.camcorder.qvga=mp4,h264,15,500000,aac,32000,16000,2
ro.media.camcorder.mms=3gp,h264,15,128000,amrnb,12200,8000,1
ro.media.camcorder.mmsres=qvga
ro.camcorder.zoom=true
ro.media.capture.shuttertone=1
ro.camcorder.videoModes=false
ro.media.camera.focal=2480.0,2480.0
ro.media.camera.principal=1296.0,972.0
ro.media.camera.skew=0.0
ro.media.camera.distortion=0.0,0.0,0.0,0.0,0.0
ro.media.camera.calresolution=2592,1944
ro.mot.internalsdcard=1
dalvik.vm.lockprof.threshold=500
ro.setupwizard.mode=DISABLED
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
ro.mot.dpmext=true
ro.com.google.clientid=android-motorola
ro.url.legal=http://www.google.com/intl/%s/mobile/android/basic/phone-legal.html
ro.url.legal.android_privacy=http://www.google.com/intl/%s/mobile/android/basic/privacy.html
ro.build.version.full=Blur_Version.45.3.0.MB860.Retail.en.05
ro.mot.hidden_keyboards=evfwd

I confirm this is an us version