[wp-hackers] Must Use plugin example?

[Micky Hulse]

Howdy,

I'd like to learn how to write a solid Must Use plugin.

Just curious if anyone knows of an existing, simple, Must Use plugin
that I could use to learn from?

I'd like to see an example of a MU plugin that uses PHP5+ OOP/Class.
The simpler the example the better ... I'm mostly wanting to figure
out the template/pattern that I need to use.

Thanks!
M