Comment 5 for bug 343235

I've got a TT11LN/B; it's got an usb id 0af0:7601 also, and is working out of the box under Karmic alpha 4.

The only strange thing is that the battery has to be in the laptop; otherwise it won't even appear using "lsusb"...

Note: I've opened bug #414833, as echoing "0" on /sys/devices/platform/sony-laptop/wwanpower doesn't turn the 3G modem off and, in my oppinion, it's wasting battery when not used.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/414833

Hope the above helps ;)