You still can recover.
First, try enabling rd mode with flasher-3.0. Turn the tablet off, then press the "home" key and keep pushing while you turn the tablet on, that will put it into usb mode. Then put it in rd mode using
flasher-3.0 --enable-rd-mode
and restart it.
May be that works.

If not, things are a bit more complicated, but is possible to recover.

You'll need to prepare an alternate OS on a mmc card and boot from it. There is a debian image here http://www.internettablettalk.com/wi...n#Installation, or may be someone can send you a OS2008 or Mer tgz. Once you have your mmc card with a ext2 partition ready with debian or OS2008 or whatever on it, you can instruct the tablet to boot from mmc first using
flasher-3.0 --set-root-device mmc
Once booted from mmc, you'll be able to mount the flash partition and move your data. Once you have freed some space, you'll be able to boot from flash using flasher-3.0 --set-root-device flash
I suggest you to boot from mmc, those problems won't happen again (there are a lot of threads here about how to clone OS2008 to mmc, have a look at them, you'll find there the right rootfs device name in flash).