perms on usbdev:
crw-rw-rw- 1 root audio 189, 261 Mar 13 20:29 /dev/usbdev3.6
crw-rw-rw- 1 root audio 253,  11 Mar 13 20:29 /dev/usbdev3.6_ep00
crw-rw-rw- 1 root audio 253,  13 Mar 13 20:29 /dev/usbdev3.6_ep02
crw-rw-rw- 1 root audio 253,  12 Mar 13 20:29 /dev/usbdev3.6_ep81
crw-rw-rw- 1 root audio 253,  14 Mar 13 20:29 /dev/usbdev3.6_ep83

#################################################################
/var/log/everything.log:
Mar 13 20:09:07 darkstar usb 3-2: new high speed USB device using ehci_hcd and address 4
Mar 13 20:09:07 darkstar usb 3-2: configuration #1 chosen from 1 choice
Mar 13 20:09:08 darkstar logger: cannot find module usb:v045Ep0710d0100dcFFdsc00dp00ic00isc00ip00
##################################################################
Contents of udev-rules suggested on some forum:
mcrandello@darkstar:~$ cat /etc/udev/rules.d/10-libmtp.rules
SUBSYSTEM!="usb_device", ACTION!="add", GOTO="libmtp_rules_end"

# ZOOOOOON
ATTRS{idVendor}=="045e", ATTRS{idProduct}=="0710", SYMLINK+="libmtp-%k", MODE="666", GROUP="audio"

LABEL="libmtp_rules_end"

###################################################################
results of mtp-detect as user:
mcrandello@darkstar:~$ mtp-detect
libmtp version: 0.2.4

Attempting to connect device(s)
usb_claim_interface(): Operation not permitted
LIBMTP PANIC: Unable to initialize device 1
LIBMTP PANIC: configure_usb_devices() error code: 7 on line 1561
Detect: There has been an error connecting. Exiting
####################################################################
results as root:
libmtp version: 0.2.4

Attempting to connect device(s)
PTP: Opening session
Detect: Successfully connected 1 devices
Error 2: PTP Layer error 02ff: get_all_metadata_fast(): could not get proplist of all objects.
Error 2: (Look this up in ptp.h for an explanation.)
Error 2: PTP Layer error 02ff: get_handles_recursively(): could not get object handles.
Error 2: (Look this up in ptp.h for an explanation.)
USB low-level info:
   Using kernel interface "usbfs"
   bcdUSB: 512
   bDeviceClass: 255
   bDeviceSubClass: 0
   bDeviceProtocol: 0
   idVendor: 045e
   idProduct: 0710
   IN endpoint maxpacket: 512 bytes
   OUT endpoint maxpacket: 512 bytes
   Device flags: 0x00000000
Microsoft device descriptor 0xee:
        0000: 1203 4d00 5300 4600 5400 3100 3000 3000   ..M.S.F.T.1.0.0.
        0010: fe00                                      ..
Microsoft device response to control message 1, CMD 0xfe:
        0000: 2800 0000 0001 0400 0100 0000 0000 0000   (...............
        0010: 0001 4d54 505a 0000 0000 0000 0000 0000   ..MTPZ..........
        0020: 0000 0000 0000 0000                       ........
Potential MTP Device with VendorID:045e and ProductID:0710 responded to control message 2 with a response that was too short. Problems may arrise but continuing
Device info:
   Manufacturer: Microsoft
   Model: Zune
   Device version: 02.03.01145.00-00435
   Serial number: 07bddbd8 - acee664e - 80bd1ff8 - 8ee00652
   Vendor extension ID: 0x00000006
   Vendor extension description: microsoft.com: 1.0; microsoft.com/WMDRMPD: 10.1; microsoft.com/WMPPD: 11.1; microsoft.com/AAVT: 1.0; microsoft.com/WMDRMND: 1.0; microsoft.com/MTPZ: 1.0;
   Detected object size: 64 bits
Supported operations:
   1001: get device info
   1002: Open session
   1003: Close session
   1004: Get storage IDs
   1005: Get storage info
   1006: Get number of objects
   1007: Get object handles
   1008: Get object info
   1009: Get object
   100b: Delete object
   100c: Send object info
   100d: Send object
   100f: Format storage
   1010: Reset device
   1014: Get device property description
   1015: Get device property value
   1016: Set device property value
   1019: Move object
   101b: Get partial object
   9810: Get object references
   9811: Set object references
   9802: Get object property description
   9807: Get interdependent property description
   9801: Get object properties supported
   9803: Get object property value
   9804: Set object property value
   9805: Get object property list
   9806: Set object property list
   9808: Send object property list
   9101: Get secure time challenge
   9102: Get secure time response
   9103: Set license response
   9104: Get sync list
   9105: Send meter challenge query
   9106: Get meter challenge
   9107: Get meter response
   9108: Clean data store
   9109: Get license state
   910a: Send WMDRM-PD Command
   910b: Send WMDRM-PD Request
   9218: Unknown (9218)
   9219: Unknown (9219)
   9204: Unknown (9204)
   9217: Unknown (9217)
   9226: Unknown (9226)
   9225: Unknown (9225)
   9224: Unknown (9224)
   9227: Unknown (9227)
   9228: Unknown (9228)
   9212: Send WMDRM-PD Application Request
   9213: Get WMDRM-PD Application Response
   9214: Enable trusted file operations
   9215: Disable trusted file operations
   9216: End trusted application session
   9170: Open Media Session
   9171: Close Media Session
   9172: Get Next Data Block
   921a: Unknown (921a)
   921b: Unknown (921b)
   921c: Unknown (921c)
   921d: Unknown (921d)
   9180: Send Registration Request
   9181: Get Registration Response
   9182: Get Proximity Challenge
   9183: Send Proximity Response
   9184: Send WMDRM-ND License Request
   9185: Get WMDRM-ND License Response
   9242: Unknown (9242)
   9240: Unknown (9240)
Events supported:
   None.
Device Properties Supported:
   0xd221: Unknown property
   0xd101: Secure Time
   0xd401: Synchronization Partner
   0x5001: Battery Level
   0xd102: Device Certificate
   0xd402: Friendly Device Name
   0x5002: Functional Mode
   0xd219: Unknown property
   0xd218: Unknown property
   0xd21d: Unknown property
   0xd21c: Unknown property
   0xd406: Unknown property
   0xd217: Unknown property
   0xd405: Device Icon
   0xd103: Revocation Info
   0xd21a: Unknown property
   0xd21b: Unknown property
   0xd21f: Unknown property
   0xd220: Unknown property
Playable File (Object) Types and Object Properties Supported:
   3009: MP3