Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
SpeQ Mathematics - SpeQ is a small, extensive mathematics program with a simple, intuitive interface.
Palaround - Meet people you should be friends with.
Qalculate! - Qalculate! is a multiplatform multi-purpose desktop calculator.
Babble - A more personalized social network
NumWorks - The graphing calculator that makes learning math easier.