hi guys! is there a need to enhance mySQL? why do you think so? plz reply.. tnx...

p.s.
enhancing mySQL
by adding features
such as jobs, triggers,
etc...

Have you bothered to check out the documentation on their website? Some of those features are available in MySQL 5 which is in development mode.

They also have a list of "to dos" (I belive it is titled) that suggests what they plan to add in future releases.