[eluser]Johan André[/eluser]
I voted "no" for a not successful idea.
The reason:
The community
Codeigniter has a strong community. You don't - yet.
The need
Codeigniter has almost everything I need. Sure, there are some bugs and wanted function but generally it never disapointed me.
The documentation
Codeigniter has great documentation, a Wiki and a great user forum with alot of contributors.
A question:
What besides dropping php4 support are priority features?
IMHO you should put your time in creating libraries for webservies and functions for the official releases...