gtkaddpoi is a simple gtk interface for search an address and add as POI on TangoGPS. It's use Yahoo Maps API for found coordinate from an address and put this POI on TangoGPS database.
You can download ipk fils from following link
After you download opk file, please upload it to you Neo, then use this command to install program.
You can use repository http://minucci.net/file/opkg/ too