mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
cat /sdcard/Hebrew/DroidSans-Bold.ttf > /system/fonts/DroidSans-Bold.ttf
cat /sdcard/Hebrew/DroidSansMono.ttf > /system/fonts/DroidSansMono.ttf
cat /sdcard/Hebrew/DroidSans.ttf > /system/fonts/DroidSans.ttf
cat /sdcard/Hebrew/DroidSerif-Bold.ttf > /system/fonts/DroidSerif-Bold.ttf
cat /sdcard/Hebrew/DroidSerif-Regular.ttf > /system/fonts/DroidSerif-Regular.ttf
reboot