I have mmcblk0p1 backup and I can make kernel backup. It will not probably 100% original, but it's working backups.
EDIT: the change in p1 is usbnet over wi-fi, but it could be easily undone by editing some firewall file (see wiki)
How to download:
Click "Download", copy the numbers and letters from picture to text box and click "Download"
(I hope it will be in english).
Unfortunately, the download speed is limited to 300 kb/s (maybe just 150)