[Hero, G2 Touch Android Development] :
# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=ERD79
ro.build.display.id=VanillaEclair 1.3 JIT PE
ro.build.version.incremental=eng.npr.20100125.100919
ro.build.version.sdk=7
ro.build.version.codename=REL
ro.build.version.release=VanillaEclair 1.3 JIT PE
ro.build.date=Sat May 01 9:32:19 GMT 2010
ro.build.date.utc=1264414209
ro.build.type=userdebug
ro.build.user=CERBYwinnfield
ro.build.host=xdaforums.com
ro.build.tags=test-keys
ro.product.model=Hero
ro.product.brand=HTC
ro.product.name=htc_hero
ro.product.device=hero
ro.product.board=hero
ro.product.cpu.abi=armeabi
ro.product.manufacturer=HTC
ro.product.locale.language=en
ro.product.locale.region=GB
ro.wifi.channels=13
ro.board.platform=msm7k
# ro.build.product is obsolete; use ro.product.device
ro.build.product=hero
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=Android 2.1
ro.build.fingerprint=google/passion/passion/mahimahi:2.1/ERD79/22607:user/release-keys
ro.opengles.version = 131072
ro.qualcomm.proprietary_obex=true
# end build properties
#
# system.prop for hero
#

#
# This file describes the media capabilities and profiles
# using system properties.
#
# Note: The property key and value has some length
# limit as defined by PROPERTY_KEY_MAX and
# PROPERTY_VALUE_MAX, respectively
#
# WARNING: We may not use system properties for specifying
# media capabilities and profiles in the future
#
ro.media.enc.file.format = 3gp,mp4
ro.media.enc.vid.codec = m4v,h263
ro.media.enc.vid.h263.width = 176,352
ro.media.enc.vid.h263.height = 144,288
ro.media.enc.vid.h263.bps = 64000,800000
ro.media.enc.vid.h263.fps = 1,30
ro.media.enc.vid.m4v.width = 176,352
ro.media.enc.vid.m4v.height = 144,288
ro.media.enc.vid.m4v.bps = 64000,800000
ro.media.enc.vid.m4v.fps = 1,30

rild.libpath=/system/lib/libhtc_ril.so
wifi.interface = tiwlan0
# 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 = 60

# density in DPI of the LCD of this board. This is used to scale the UI
# appropriately. If this property is not defined, the default value is 160 dpi.
ro.sf.lcd_density = 160

[COLOR="Red"]# Default network type
# 0 => WCDMA Preferred.
ro.telephony.default_network = 0[/COLOR]

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.config.notification_sound=Ascend.mp3
ro.config.alarm_alert=Snooze.mp3
keyguard.no_require_sim=true
ro.com.android.dateformat=dd-MM-yyyy
ro.com.android.dataroaming=true
ro.ril.hsxpa=2
ro.ril.gprsclass=12
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.com.google.networklocation=1
ro.config.ringtone=Innovation.mp3
dalvik.vm.dexopt-flags=m=y
ro.kernel.android.checkjni=1
ro.com.google.locationfeatures=1
ro.setupwizard.mode=OPTIONAL
net.bt.name=Android
ro.config.sync=yes
dalvik.vm.stack-trace-file=/data/anr/traces.txt
dalvik.vm.jniopts=warnonly
dalvik.vm.heapsize=24m

# JIT

dalvik.vm.execution-mode=int:jit

This is build.prop from VanillaEclair. Any idea on the red lines above? Thinking of setting the preference to GSM auto (PRL) from here. So there is no need to reset the setting every time I flash a ROM.