My own suggestions:
- 24-bit colour support or 16.7 million colours.
- Adults only boards (you would need VISA as proof of ID)
- Disable use of the ESC key and Alt+F4 to prevent cheating
- Background music (Audio CD, MP3, MP4, OGG, WAV and so on)
- Board Editor\Creator
- Multiple Speakers support (if the ball is on the left only the left speakers make noise)
- Better documentation for routers and port forwarding
- Record gameplay as MPG, AVI or WMV
- Large avatar support up to 150x150
- Note Abuse button once pressed an email is sent to Moderators with Note contents.
- True DirectX 9 support (DirectX 10 is only for Vista so is bad)
- Indicators for which boards a player has, the same as Rival Ball.
- Automatic Support for WinXP SP2 Firewall
- VOIP support so players can talk to each other while playing.
- Ability to change powerup combo's without having to go offline.
- Replace the whole chat room with a irc channel using Java (cut and paste of text, bots to ban abusive people) - revised 9th July
- Allow Windows screensaver when RBT isn't the active window.
- Clear Unused Game Room or Login Entries from registry function - added 2nd July
- Easy Screen Capture functions using GdiPlus.dll - added 2nd July
- Lock Windowed mode Window so mouse can't escape the game while playing can be enabled or disabled via hotkey - added 2nd July
- 32-bit and 64-bit versions - added 10th July
- Dual-core CPU support - added 10th July
- Unlimited number of characters in Notes field (scroll bars?) - added 11 July
- Tooltips near the system tray displaying Player10 is trying to join your game similier to Instant Messenging software - added 14 July
- Allow only one instance of RB Tournament.exe - added 15th July
One last thing, I would like to be a beta tester for RBT II.