[Android Software/Hacking General [Developers Only]] Christian Buchner:
Odd, I find that /system/xbin/su does not have any strings inside that allow it to talk to the Superuser.apk. It seems to be the original Android su binary.

Now regarding WCDMA support in the 1013 image:

After enabling wcdma and rebooting I finally get reception bar indication in the status bar. But I can't seem to configure an APN and to connect (how would I even trigger it to connect?)

EDIT: Found how to configure APNs. When you enter the "Access Point Names" section in the "Wirless & Networks" settings the screen is blank (no default choices offered). You have to press the menu button and select "Add APN". Duh, now I feel stupid.

The following command lets you sniff into what's going on in the radio part:

adb -d logcat -b radio

D/GSM ( 2132): [PdpConnection] DataConnection.getState()
D/GSM ( 2132): [PdpConnection] Connecting to carrier: 'Klarmobil' APN: 'internet.mobilcom' proxy: '' po
rt: '
D/RILJ ( 2132): [0095]> SETUP_DATA_CALL 1 0 internet.mobilcom 3
D/RILC ( 2027): [0095]> SETUP_DATA_CALL (1,0,internet.mobilcom,,,3)
D/RIL ( 2027): onRequest: SETUP_DATA_CALL
D/RIL ( 2027): requesting data connection to APN 'internet.mobilcom'
D/AT ( 2027): AT> AT+CLCK="SC",2
D/GSM ( 2132): [GsmDataConnectionTracker] setState: INITING
D/AT ( 2027): AT< +CLCK: 0
D/AT ( 2027): AT< OK
D/AT ( 2027): AT> AT+CPBS="SM"
D/AT ( 2027): AT< OK
D/AT ( 2027): AT> AT+CGDCONT=1,"IP","internet.mobilcom",,0,0
D/AT ( 2027): AT< OK
D/AT ( 2027): AT> AT+CGQREQ=1
D/AT ( 2027): AT< OK
D/AT ( 2027): AT> AT+CGQMIN=1
D/AT ( 2027): AT< OK
D/AT ( 2027): AT> AT+CGEREP=1,0
D/AT ( 2027): AT< OK
D/AT ( 2027): AT> AT+CGACT=0,1
D/AT ( 2027): AT< OK
D/RIL ( 2027): start to /dev/ttyUSB0
D/RIL ( 2027): PPPd started
W/RIL ( 2027): Can not detect PPP state in /sys/class/net/ppp0/operstate. Will retry 2 times after 3 se
conds
W/RIL ( 2027): Can not detect PPP state in /sys/class/net/ppp0/operstate. Will retry 1 times after 3 se
conds
W/RIL ( 2027): Can not detect PPP state in /sys/class/net/ppp0/operstate. Will retry 0 times after 3 se
conds
D/AT ( 2027): AT> AT+CGACT=0,1
D/AT ( 2027): AT< OK
D/RILC ( 2027): [0095]< SETUP_DATA_CALL fails by E_GENERIC_FAILURE
D/RILJ ( 2132): [0095]< SETUP_DATA_CALL error: com.android.internal.telephony.CommandException: GENERIC_
FAILURE
D/GSM ( 2132): [PdpConnection] DataConnection.handleMessage()
E/GSM ( 2132): PDP Context Init failed com.android.internal.telephony.CommandException: GENERIC_FAILURE
D/RILJ ( 2132): [0096]> LAST_DATA_CALL_FAIL_CAUSE
D/RILC ( 2027): [0096]> LAST_DATA_CALL_FAIL_CAUSE
D/RIL ( 2027): onRequest: LAST_DATA_CALL_FAIL_CAUSE
D/RILC ( 2027): [0096]< LAST_DATA_CALL_FAIL_CAUSE fails by E_REQUEST_NOT_SUPPORTED
D/RILJ ( 2132): [0096]< LAST_DATA_CALL_FAIL_CAUSE error: com.android.internal.telephony.CommandException
: REQUEST_NOT_SUPPORTED
D/GSM ( 2132): [PdpConnection] DataConnection.handleMessage()
D/GSM ( 2132): [PdpConnection] Notify PDP fail at 1287007764224 due to Unknown Data Error
D/GSM ( 2132): GSMDataConnTrack handleMessage { what=1 when=86339 obj=android.os.AsyncResult@43c76be8 }
D/GSM ( 2132): [GsmDataConnectionTracker] PDP setup failed Unknown Data Error
D/GSM ( 2132): [GsmDataConnectionTracker] setState: FAILED
D/GSM ( 2132): PDP activate failed. Scheduling next attempt for 5s

That would be the problem. My modem works on /dev/ttyUSB3, not /dev/ttyUSB0