SymbolDraw is an educational game App for iPhone. Uses can just follow the symbol strokes on the screen, and draw (or write?) on them with their index fingers. The App then gives user a score: poor? good? or excellent? Uses can read the meaning of the symbols on the upper part of screen when playing.

JLongTCPConn is a Open-Source development toolkit in Java for TCP connection and session. It does the jobs of TCP session processing, such as login, session maintaining, cache allocating, active-test/heartbeating and data buffering, which makes you focus on application layer logics. It also provides tools for converting between Java objects and bytepack/bitpack messages.