Edit: June 1
I released 2.99-3 2.99-4 with 2 small changes:
1) Fixed so you cannot type in the mobile substrate text box.
2) Added option to hide the hold indicators. If you dislike the new little hand icons indicating which icons support hold action, you can turn them off in the more app. Just go and disable the Shows Hold Icons option. It defaults to ON.

Original Post Below:
I released SBSettings 2.99-2. Here are the changes. Those of you that were having wifi issues should go get it since I reverted the iPhone OS 2 wifi toggle back to its previous code base.

Changes: (Note: this is a v3.0 release candidate).

v2.99-2
• More App: Fixed issue with text box on 2.x mobile substrate screen.
• Both: Option switch in more app and support for 24 hour time display (by request).
• Both: Option switch in more app and support for toggling between / and . for date separator (by request).
• DYLIB: Moved Wifi toggle code back to 1.x version method for 2.x iPhones. I couldn’t reproduce any wifi toggle errors, but now it’s back to how it used to be anyway. The new code is only used on 3.0.
• DYLIB: Added a little indicator to the bottom right of each icon that supports hold action. (Themers, this icon is themable. Just add a Hold.png in your theme. It should be 19×19. If your icon is missing, the one out of Default theme is used).
• DYLIB: Added a quick popup to wifi toggle on the hold action to indicate on which access point you are connected. (Sorry, but figuring out how to select access points will require a lot more research. Remember none of this stuff is documented by Apple.)
• DYLIB: Updated processes toggle to not close the toggle each time you kill an app with it.
• DYLIB: Fixed springboard crash when holding wifi toggle for 1 second on 2.x.
• DYLIB: Prevent fast respring if iPhone is locked. Periodically, people post news and videos that you can get to icons and bypass the security lock. This feature is disabled by default and I only added it because users wanted it. So it is an option that you have to enable in the settings. I don’t consider this a security issue since you have to actually enable the feature. In either case, I patched the respring bypass to allow my email inbox to quiet down.