tbh to all above 1gb card is fine have it running and apps working on 1gb card here and working fine. mine kept locking up on ext3 format but i ran this code as root in terminal and used nitdoid installer and works fine.

sfdisk -uM /dev/mmcblk1 << EOF
,100,C
,,L
,,
,,
EOF

after using the above code just type in nitdroid in the same terminal window and it should install fine just remeber to be root when doing this.