HyperWRT has these added features :

• Adjustable Transmit Power
  
• Antenna Select
• 13 Wireless Channels
• ‘Boot Wait’ flash protection
• Increased maximum concurrent connections
  
• More Port Forwarding & Triggering Fields
• More Qos Device & Application Fields
• More Access Restrictions Policies & Blocked Services Fields
  
• Command Shell
• Telnet Daemon
  
• Startup & Firewall Scripts
• Uptime
• Reboot Button
  
• Hidden features in the Linksys firmware