Modular refactoring possible?

[eluser]TheFuzzy0ne[/eluser]
I've been thinking about this, and I think you need to intercept it at the index.php. I think the index.php needs to be part CodeIgniter, and part Your Existing App. Merging the two files together, with some logic that maybe checks CodeIgniter for the appropriate controller, and if it's not there yet, your existing app handles it. Effectively, the index.php will be a controller of sorts.

When you're done, you'd convert back to the original index.php that came with CodeIgniter.

Hopefully this makes sense.