If anyone is using GNU nano from Extras as a text editor, beware that it automatically inserts line breaks where your lines wrap by default, which could seriously mess up any scripts / system files you're working on! To fix this run:

echo "set nowrap" > ~/.nanorc

This will create a config file (used by both user and root, since they have the same home directory) for nano and tell it not to wrap (usually this is set by default on most distros).

Even experienced Linux users like myself may be used to Nano having nowrap set by default, and might only find that Maemo is different after they mess up a critical config file!