Any good example CI apps?

[eluser]lxdev[/eluser]
Does anyone know where I could download a CI app so that I can look at the code and figure out how it works? This is how I learn things the easiest. If not, prepare for some stupid questions from me in the future

What I'm looking for is an app that handles logins, sessions, etc. Any kind of app really, just as long as you think the code is well written!

[eluser]Dam1an[/eluser]
Well, you have Bamboo Invoice, written by Derek (one of the devs)

[eluser]lxdev[/eluser]
[quote author="Dam1an" date="1247194223"]Well, you have Bamboo Invoice, written by Derek (one of the devs)[/quote]
Great, I'll take a look at that. Thanks.

[eluser]thePiet[/eluser]
Cool, I was looking for some nice example apps like this. More examples are welcome !