Mount_dd is a GUI for mounting a raw image in Gnome. You can mount a dd-image in read-write or read-only mode. You can mount ISO, .img, raw, .00x formats, EWF, and AFF in read-only mode. You can also mount exfat partitions in read-only mode.
A simple chess clock to track time in real-life games.
Standards-compliant Java persistence via JDO/JPA/REST and RDBMS/db4o/Excel/LDAP.