We are currently developing our own Control Panel which we will use on our hosting site once launched. Although we haven't got very far yet we are re-considering its features.

As of now, it runs cross-server, meaning it runs with both Windows, ASP and Linux, PHP (other combinations too, Windows, PHP etc.).

So what do you need? Please exclude cPanel features, which include;

Mail
Changing Password
Parked & addon domains
FTP accounts & upload
Disk Usage
Backups
Password protecting Directories
Custom Error Pages
Sub-domain handling
MySQL Database access & handling
Frontpage Extensions
Statistics from all activity
Raw Access Logs & manager
Error logs
A chatroom
Shopping Cart
Bulletin Board
CGI Center
Scripts Library
Cron jobs
Network Tools
Mime types & handlers
Hotlink Protection
Index Manager
IP Deny Manager
SSL Manager

Regards,